time

Struct OffsetDateTime

Source 
pub struct OffsetDateTime { /* private fields */ }
Expand description

A PrimitiveDateTime with a UtcOffset.

All comparisons are performed using the UTC time.

Implementations§

Source§

impl OffsetDateTime

Source

pub const UNIX_EPOCH: Self = _

Midnight, 1 January, 1970 (UTC).

assert_eq!(OffsetDateTime::UNIX_EPOCH, datetime!(1970-01-01 0:00 UTC),);
Source

pub fn now_utc() -> Self

Create a new OffsetDateTime with the current date and time in UTC.

assert!(OffsetDateTime::now_utc().year() >= 2019);
assert_eq!(OffsetDateTime::now_utc().offset(), offset!(UTC));
Source

pub const fn new_in_offset(date: Date, time: Time, offset: UtcOffset) -> Self

Create a new OffsetDateTime with the given Date, Time, and UtcOffset.

let dt = OffsetDateTime::new_in_offset(
    Date::from_calendar_date(2024, Month::January, 1)?,
    Time::from_hms_nano(12, 59, 59, 500_000_000)?,
    UtcOffset::from_hms(-5, 0, 0)?,
);
assert_eq!(dt, datetime!(2024-01-01 12:59:59.5 -5));
Source

pub const fn new_utc(date: Date, time: Time) -> Self

Create a new OffsetDateTime with the given Date and Time in the UTC timezone.

let dt = OffsetDateTime::new_utc(
    Date::from_calendar_date(2024, Month::January, 1)?,
    Time::from_hms_nano(12, 59, 59, 500_000_000)?,
);
assert_eq!(dt, datetime!(2024-01-01 12:59:59.5 UTC));
Source

pub const fn to_offset(self, offset: UtcOffset) -> Self

Convert the OffsetDateTime from the current UtcOffset to the provided UtcOffset.

assert_eq!(
    datetime!(2000-01-01 0:00 UTC)
        .to_offset(offset!(-1))
        .year(),
    1999,
);

// Let's see what time Sydney's new year's celebration is in New York and Los Angeles.

// Construct midnight on new year's in Sydney.
let sydney = datetime!(2000-01-01 0:00 +11);
let new_york = sydney.to_offset(offset!(-5));
let los_angeles = sydney.to_offset(offset!(-8));
assert_eq!(sydney.hour(), 0);
assert_eq!(new_york.hour(), 8);
assert_eq!(los_angeles.hour(), 5);
§Panics

This method panics if the local date-time in the new offset is outside the supported range.

Source

pub const fn checked_to_offset(self, offset: UtcOffset) -> Option<Self>

Convert the OffsetDateTime from the current UtcOffset to the provided UtcOffset, returning None if the date-time in the resulting offset is invalid.

assert_eq!(
    datetime!(2000-01-01 0:00 UTC)
        .checked_to_offset(offset!(-1))
        .unwrap()
        .year(),
    1999,
);
assert_eq!(
    PrimitiveDateTime::MAX
        .assume_utc()
        .checked_to_offset(offset!(+1)),
    None,
);
Source

pub const fn from_unix_timestamp(timestamp: i64) -> Result<Self, ComponentRange>

Create an OffsetDateTime from the provided Unix timestamp. Calling .offset() on the resulting value is guaranteed to return UTC.

assert_eq!(
    OffsetDateTime::from_unix_timestamp(0),
    Ok(OffsetDateTime::UNIX_EPOCH),
);
assert_eq!(
    OffsetDateTime::from_unix_timestamp(1_546_300_800),
    Ok(datetime!(2019-01-01 0:00 UTC)),
);

If you have a timestamp-nanosecond pair, you can use something along the lines of the following:

let (timestamp, nanos) = (1, 500_000_000);
assert_eq!(
    OffsetDateTime::from_unix_timestamp(timestamp)? + Duration::nanoseconds(nanos),
    OffsetDateTime::UNIX_EPOCH + 1.5.seconds()
);
Source

pub const fn from_unix_timestamp_nanos( timestamp: i128, ) -> Result<Self, ComponentRange>

Construct an OffsetDateTime from the provided Unix timestamp (in nanoseconds). Calling .offset() on the resulting value is guaranteed to return UTC.

assert_eq!(
    OffsetDateTime::from_unix_timestamp_nanos(0),
    Ok(OffsetDateTime::UNIX_EPOCH),
);
assert_eq!(
    OffsetDateTime::from_unix_timestamp_nanos(1_546_300_800_000_000_000),
    Ok(datetime!(2019-01-01 0:00 UTC)),
);
Source

pub const fn offset(self) -> UtcOffset

Get the UtcOffset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).offset(), offset!(UTC));
assert_eq!(datetime!(2019-01-01 0:00 +1).offset(), offset!(+1));
Source

pub const fn unix_timestamp(self) -> i64

Get the Unix timestamp.

assert_eq!(datetime!(1970-01-01 0:00 UTC).unix_timestamp(), 0);
assert_eq!(datetime!(1970-01-01 0:00 -1).unix_timestamp(), 3_600);
Source

pub const fn unix_timestamp_nanos(self) -> i128

Get the Unix timestamp in nanoseconds.

use time_macros::datetime;
assert_eq!(datetime!(1970-01-01 0:00 UTC).unix_timestamp_nanos(), 0);
assert_eq!(
    datetime!(1970-01-01 0:00 -1).unix_timestamp_nanos(),
    3_600_000_000_000,
);
Source

pub const fn date(self) -> Date

Get the Date in the stored offset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).date(), date!(2019-01-01));
assert_eq!(
    datetime!(2019-01-01 0:00 UTC)
        .to_offset(offset!(-1))
        .date(),
    date!(2018-12-31),
);
Source

pub const fn time(self) -> Time

Get the Time in the stored offset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).time(), time!(0:00));
assert_eq!(
    datetime!(2019-01-01 0:00 UTC)
        .to_offset(offset!(-1))
        .time(),
    time!(23:00)
);
Source

pub const fn year(self) -> i32

Get the year of the date in the stored offset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).year(), 2019);
assert_eq!(
    datetime!(2019-12-31 23:00 UTC)
        .to_offset(offset!(+1))
        .year(),
    2020,
);
assert_eq!(datetime!(2020-01-01 0:00 UTC).year(), 2020);
Source

pub const fn month(self) -> Month

Get the month of the date in the stored offset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).month(), Month::January);
assert_eq!(
    datetime!(2019-12-31 23:00 UTC)
        .to_offset(offset!(+1))
        .month(),
    Month::January,
);
Source

pub const fn day(self) -> u8

Get the day of the date in the stored offset.

The returned value will always be in the range 1..=31.

assert_eq!(datetime!(2019-01-01 0:00 UTC).day(), 1);
assert_eq!(
    datetime!(2019-12-31 23:00 UTC)
        .to_offset(offset!(+1))
        .day(),
    1,
);
Source

pub const fn ordinal(self) -> u16

Get the day of the year of the date in the stored offset.

The returned value will always be in the range 1..=366.

assert_eq!(datetime!(2019-01-01 0:00 UTC).ordinal(), 1);
assert_eq!(
    datetime!(2019-12-31 23:00 UTC)
        .to_offset(offset!(+1))
        .ordinal(),
    1,
);
Source

pub const fn iso_week(self) -> u8

Get the ISO week number of the date in the stored offset.

The returned value will always be in the range 1..=53.

assert_eq!(datetime!(2019-01-01 0:00 UTC).iso_week(), 1);
assert_eq!(datetime!(2020-01-01 0:00 UTC).iso_week(), 1);
assert_eq!(datetime!(2020-12-31 0:00 UTC).iso_week(), 53);
assert_eq!(datetime!(2021-01-01 0:00 UTC).iso_week(), 53);
Source

pub const fn sunday_based_week(self) -> u8

Get the week number where week 1 begins on the first Sunday.

The returned value will always be in the range 0..=53.

assert_eq!(datetime!(2019-01-01 0:00 UTC).sunday_based_week(), 0);
assert_eq!(datetime!(2020-01-01 0:00 UTC).sunday_based_week(), 0);
assert_eq!(datetime!(2020-12-31 0:00 UTC).sunday_based_week(), 52);
assert_eq!(datetime!(2021-01-01 0:00 UTC).sunday_based_week(), 0);
Source

pub const fn monday_based_week(self) -> u8

Get the week number where week 1 begins on the first Monday.

The returned value will always be in the range 0..=53.

assert_eq!(datetime!(2019-01-01 0:00 UTC).monday_based_week(), 0);
assert_eq!(datetime!(2020-01-01 0:00 UTC).monday_based_week(), 0);
assert_eq!(datetime!(2020-12-31 0:00 UTC).monday_based_week(), 52);
assert_eq!(datetime!(2021-01-01 0:00 UTC).monday_based_week(), 0);
Source

pub const fn to_calendar_date(self) -> (i32, Month, u8)

Get the year, month, and day.

assert_eq!(
    datetime!(2019-01-01 0:00 UTC).to_calendar_date(),
    (2019, Month::January, 1)
);
Source

pub const fn to_ordinal_date(self) -> (i32, u16)

Get the year and ordinal day number.

assert_eq!(
    datetime!(2019-01-01 0:00 UTC).to_ordinal_date(),
    (2019, 1)
);
Source

pub const fn to_iso_week_date(self) -> (i32, u8, Weekday)

Get the ISO 8601 year, week number, and weekday.

assert_eq!(
    datetime!(2019-01-01 0:00 UTC).to_iso_week_date(),
    (2019, 1, Tuesday)
);
assert_eq!(
    datetime!(2019-10-04 0:00 UTC).to_iso_week_date(),
    (2019, 40, Friday)
);
assert_eq!(
    datetime!(2020-01-01 0:00 UTC).to_iso_week_date(),
    (2020, 1, Wednesday)
);
assert_eq!(
    datetime!(2020-12-31 0:00 UTC).to_iso_week_date(),
    (2020, 53, Thursday)
);
assert_eq!(
    datetime!(2021-01-01 0:00 UTC).to_iso_week_date(),
    (2020, 53, Friday)
);
Source

pub const fn weekday(self) -> Weekday

Get the weekday of the date in the stored offset.

assert_eq!(datetime!(2019-01-01 0:00 UTC).weekday(), Tuesday);
assert_eq!(datetime!(2019-02-01 0:00 UTC).weekday(), Friday);
assert_eq!(datetime!(2019-03-01 0:00 UTC).weekday(), Friday);
Source

pub const fn to_julian_day(self) -> i32

Get the Julian day for the date. The time is not taken into account for this calculation.

The algorithm to perform this conversion is derived from one provided by Peter Baum; it is freely available here.

assert_eq!(datetime!(-4713-11-24 0:00 UTC).to_julian_day(), 0);
assert_eq!(datetime!(2000-01-01 0:00 UTC).to_julian_day(), 2_451_545);
assert_eq!(datetime!(2019-01-01 0:00 UTC).to_julian_day(), 2_458_485);
assert_eq!(datetime!(2019-12-31 0:00 UTC).to_julian_day(), 2_458_849);
Source

pub const fn to_hms(self) -> (u8, u8, u8)

Get the clock hour, minute, and second.

assert_eq!(datetime!(2020-01-01 0:00:00 UTC).to_hms(), (0, 0, 0));
assert_eq!(datetime!(2020-01-01 23:59:59 UTC).to_hms(), (23, 59, 59));
Source

pub const fn to_hms_milli(self) -> (u8, u8, u8, u16)

Get the clock hour, minute, second, and millisecond.

assert_eq!(
    datetime!(2020-01-01 0:00:00 UTC).to_hms_milli(),
    (0, 0, 0, 0)
);
assert_eq!(
    datetime!(2020-01-01 23:59:59.999 UTC).to_hms_milli(),
    (23, 59, 59, 999)
);
Source

pub const fn to_hms_micro(self) -> (u8, u8, u8, u32)

Get the clock hour, minute, second, and microsecond.

assert_eq!(
    datetime!(2020-01-01 0:00:00 UTC).to_hms_micro(),
    (0, 0, 0, 0)
);
assert_eq!(
    datetime!(2020-01-01 23:59:59.999_999 UTC).to_hms_micro(),
    (23, 59, 59, 999_999)
);
Source

pub const fn to_hms_nano(self) -> (u8, u8, u8, u32)

Get the clock hour, minute, second, and nanosecond.

assert_eq!(
    datetime!(2020-01-01 0:00:00 UTC).to_hms_nano(),
    (0, 0, 0, 0)
);
assert_eq!(
    datetime!(2020-01-01 23:59:59.999_999_999 UTC).to_hms_nano(),
    (23, 59, 59, 999_999_999)
);
Source

pub const fn hour(self) -> u8

Get the clock hour in the stored offset.

The returned value will always be in the range 0..24.

assert_eq!(datetime!(2019-01-01 0:00 UTC).hour(), 0);
assert_eq!(
    datetime!(2019-01-01 23:59:59 UTC)
        .to_offset(offset!(-2))
        .hour(),
    21,
);
Source

pub const fn minute(self) -> u8

Get the minute within the hour in the stored offset.

The returned value will always be in the range 0..60.

assert_eq!(datetime!(2019-01-01 0:00 UTC).minute(), 0);
assert_eq!(
    datetime!(2019-01-01 23:59:59 UTC)
        .to_offset(offset!(+0:30))
        .minute(),
    29,
);
Source

pub const fn second(self) -> u8

Get the second within the minute in the stored offset.

The returned value will always be in the range 0..60.

assert_eq!(datetime!(2019-01-01 0:00 UTC).second(), 0);
assert_eq!(
    datetime!(2019-01-01 23:59:59 UTC)
        .to_offset(offset!(+0:00:30))
        .second(),
    29,
);
Source

pub const fn millisecond(self) -> u16

Get the milliseconds within the second in the stored offset.

The returned value will always be in the range 0..1_000.

assert_eq!(datetime!(2019-01-01 0:00 UTC).millisecond(), 0);
assert_eq!(datetime!(2019-01-01 23:59:59.999 UTC).millisecond(), 999);
Source

pub const fn microsecond(self) -> u32

Get the microseconds within the second in the stored offset.

The returned value will always be in the range 0..1_000_000.

assert_eq!(datetime!(2019-01-01 0:00 UTC).microsecond(), 0);
assert_eq!(
    datetime!(2019-01-01 23:59:59.999_999 UTC).microsecond(),
    999_999,
);
Source

pub const fn nanosecond(self) -> u32

Get the nanoseconds within the second in the stored offset.

The returned value will always be in the range 0..1_000_000_000.

assert_eq!(datetime!(2019-01-01 0:00 UTC).nanosecond(), 0);
assert_eq!(
    datetime!(2019-01-01 23:59:59.999_999_999 UTC).nanosecond(),
    999_999_999,
);
Source

pub const fn checked_add(self, duration: Duration) -> Option<Self>

Computes self + duration, returning None if an overflow occurred.

let datetime = Date::MIN.midnight().assume_offset(offset!(+10));
assert_eq!(datetime.checked_add((-2).days()), None);

let datetime = Date::MAX.midnight().assume_offset(offset!(+10));
assert_eq!(datetime.checked_add(2.days()), None);

assert_eq!(
    datetime!(2019 - 11 - 25 15:30 +10).checked_add(27.hours()),
    Some(datetime!(2019 - 11 - 26 18:30 +10))
);
Source

pub const fn checked_sub(self, duration: Duration) -> Option<Self>

Computes self - duration, returning None if an overflow occurred.

let datetime = Date::MIN.midnight().assume_offset(offset!(+10));
assert_eq!(datetime.checked_sub(2.days()), None);

let datetime = Date::MAX.midnight().assume_offset(offset!(+10));
assert_eq!(datetime.checked_sub((-2).days()), None);

assert_eq!(
    datetime!(2019 - 11 - 25 15:30 +10).checked_sub(27.hours()),
    Some(datetime!(2019 - 11 - 24 12:30 +10))
);
Source

pub const fn saturating_add(self, duration: Duration) -> Self

Computes self + duration, saturating value on overflow.

assert_eq!(
    datetime!(-9999-01-01 0:00 +10).saturating_add((-2).days()),
    datetime!(-9999-01-01 0:00 +10)
);

assert_eq!(
    datetime!(+9999-12-31 23:59:59.999_999_999 +10).saturating_add(2.days()),
    datetime!(+9999-12-31 23:59:59.999_999_999 +10)
);

assert_eq!(
    datetime!(2019 - 11 - 25 15:30 +10).saturating_add(27.hours()),
    datetime!(2019 - 11 - 26 18:30 +10)
);
Source

pub const fn saturating_sub(self, duration: Duration) -> Self

Computes self - duration, saturating value on overflow.

assert_eq!(
    datetime!(-9999-01-01 0:00 +10).saturating_sub(2.days()),
    datetime!(-9999-01-01 0:00 +10)
);

assert_eq!(
    datetime!(+9999-12-31 23:59:59.999_999_999 +10).saturating_sub((-2).days()),
    datetime!(+9999-12-31 23:59:59.999_999_999 +10)
);

assert_eq!(
    datetime!(2019 - 11 - 25 15:30 +10).saturating_sub(27.hours()),
    datetime!(2019 - 11 - 24 12:30 +10)
);
Source§

impl OffsetDateTime

Methods that replace part of the OffsetDateTime.

Source

pub const fn replace_time(self, time: Time) -> Self

Replace the time, which is assumed to be in the stored offset. The date and offset components are unchanged.

assert_eq!(
    datetime!(2020-01-01 5:00 UTC).replace_time(time!(12:00)),
    datetime!(2020-01-01 12:00 UTC)
);
assert_eq!(
    datetime!(2020-01-01 12:00 -5).replace_time(time!(7:00)),
    datetime!(2020-01-01 7:00 -5)
);
assert_eq!(
    datetime!(2020-01-01 0:00 +1).replace_time(time!(12:00)),
    datetime!(2020-01-01 12:00 +1)
);
Source

pub const fn replace_date(self, date: Date) -> Self

Replace the date, which is assumed to be in the stored offset. The time and offset components are unchanged.

assert_eq!(
    datetime!(2020-01-01 12:00 UTC).replace_date(date!(2020-01-30)),
    datetime!(2020-01-30 12:00 UTC)
);
assert_eq!(
    datetime!(2020-01-01 0:00 +1).replace_date(date!(2020-01-30)),
    datetime!(2020-01-30 0:00 +1)
);
Source

pub const fn replace_date_time(self, date_time: PrimitiveDateTime) -> Self

Replace the date and time, which are assumed to be in the stored offset. The offset component remains unchanged.

assert_eq!(
    datetime!(2020-01-01 12:00 UTC).replace_date_time(datetime!(2020-01-30 16:00)),
    datetime!(2020-01-30 16:00 UTC)
);
assert_eq!(
    datetime!(2020-01-01 12:00 +1).replace_date_time(datetime!(2020-01-30 0:00)),
    datetime!(2020-01-30 0:00 +1)
);
Source

pub const fn replace_offset(self, offset: UtcOffset) -> Self

Replace the offset. The date and time components remain unchanged.

assert_eq!(
    datetime!(2020-01-01 0:00 UTC).replace_offset(offset!(-5)),
    datetime!(2020-01-01 0:00 -5)
);
Source

pub const fn replace_year(self, year: i32) -> Result<Self, ComponentRange>

Replace the year. The month and day will be unchanged.

assert_eq!(
    datetime!(2022 - 02 - 18 12:00 +01).replace_year(2019),
    Ok(datetime!(2019 - 02 - 18 12:00 +01))
);
assert!(datetime!(2022 - 02 - 18 12:00 +01).replace_year(-1_000_000_000).is_err()); // -1_000_000_000 isn't a valid year
assert!(datetime!(2022 - 02 - 18 12:00 +01).replace_year(1_000_000_000).is_err()); // 1_000_000_000 isn't a valid year
Source

pub const fn replace_month(self, month: Month) -> Result<Self, ComponentRange>

Replace the month of the year.

assert_eq!(
    datetime!(2022 - 02 - 18 12:00 +01).replace_month(Month::January),
    Ok(datetime!(2022 - 01 - 18 12:00 +01))
);
assert!(datetime!(2022 - 01 - 30 12:00 +01).replace_month(Month::February).is_err()); // 30 isn't a valid day in February
Source

pub const fn replace_day(self, day: u8) -> Result<Self, ComponentRange>

Replace the day of the month.

assert_eq!(
    datetime!(2022 - 02 - 18 12:00 +01).replace_day(1),
    Ok(datetime!(2022 - 02 - 01 12:00 +01))
);
assert!(datetime!(2022 - 02 - 18 12:00 +01).replace_day(0).is_err()); // 00 isn't a valid day
assert!(datetime!(2022 - 02 - 18 12:00 +01).replace_day(30).is_err()); // 30 isn't a valid day in February
Source

pub const fn replace_ordinal(self, ordinal: u16) -> Result<Self, ComponentRange>

Replace the day of the year.

assert_eq!(datetime!(2022-049 12:00 +01).replace_ordinal(1), Ok(datetime!(2022-001 12:00 +01)));
assert!(datetime!(2022-049 12:00 +01).replace_ordinal(0).is_err()); // 0 isn't a valid ordinal
assert!(datetime!(2022-049 12:00 +01).replace_ordinal(366).is_err()); // 2022 isn't a leap year
Source

pub const fn replace_hour(self, hour: u8) -> Result<Self, ComponentRange>

Replace the clock hour.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_hour(7),
    Ok(datetime!(2022 - 02 - 18 07:02:03.004_005_006 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_hour(24).is_err()); // 24 isn't a valid hour
Source

pub const fn replace_minute(self, minute: u8) -> Result<Self, ComponentRange>

Replace the minutes within the hour.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_minute(7),
    Ok(datetime!(2022 - 02 - 18 01:07:03.004_005_006 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_minute(60).is_err()); // 60 isn't a valid minute
Source

pub const fn replace_second(self, second: u8) -> Result<Self, ComponentRange>

Replace the seconds within the minute.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_second(7),
    Ok(datetime!(2022 - 02 - 18 01:02:07.004_005_006 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_second(60).is_err()); // 60 isn't a valid second
Source

pub const fn replace_millisecond( self, millisecond: u16, ) -> Result<Self, ComponentRange>

Replace the milliseconds within the second.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_millisecond(7),
    Ok(datetime!(2022 - 02 - 18 01:02:03.007 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_millisecond(1_000).is_err()); // 1_000 isn't a valid millisecond
Source

pub const fn replace_microsecond( self, microsecond: u32, ) -> Result<Self, ComponentRange>

Replace the microseconds within the second.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_microsecond(7_008),
    Ok(datetime!(2022 - 02 - 18 01:02:03.007_008 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_microsecond(1_000_000).is_err()); // 1_000_000 isn't a valid microsecond
Source

pub const fn replace_nanosecond( self, nanosecond: u32, ) -> Result<Self, ComponentRange>

Replace the nanoseconds within the second.

assert_eq!(
    datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_nanosecond(7_008_009),
    Ok(datetime!(2022 - 02 - 18 01:02:03.007_008_009 +01))
);
assert!(datetime!(2022 - 02 - 18 01:02:03.004_005_006 +01).replace_nanosecond(1_000_000_000).is_err()); // 1_000_000_000 isn't a valid nanosecond
Source§

impl OffsetDateTime

Source

pub fn format_into( self, output: &mut impl Write, format: &(impl Formattable + ?Sized), ) -> Result<usize, Format>

Format the OffsetDateTime using the provided format description.

Source

pub fn format( self, format: &(impl Formattable + ?Sized), ) -> Result<String, Format>

Format the OffsetDateTime using the provided format description.

let format = format_description::parse(
    "[year]-[month]-[day] [hour]:[minute]:[second] [offset_hour \
         sign:mandatory]:[offset_minute]:[offset_second]",
)?;
assert_eq!(
    datetime!(2020-01-02 03:04:05 +06:07:08).format(&format)?,
    "2020-01-02 03:04:05 +06:07:08"
);
Source§

impl OffsetDateTime

Source

pub fn parse( input: &str, description: &(impl Parsable + ?Sized), ) -> Result<Self, Parse>

Parse an OffsetDateTime from the input using the provided format description.

let format = format_description!(
    "[year]-[month]-[day] [hour]:[minute]:[second] [offset_hour \
         sign:mandatory]:[offset_minute]:[offset_second]"
);
assert_eq!(
    OffsetDateTime::parse("2020-01-02 03:04:05 +06:07:08", &format)?,
    datetime!(2020-01-02 03:04:05 +06:07:08)
);

Trait Implementations§

Source§

impl Add<Duration> for OffsetDateTime

Source§

fn add(self, duration: Duration) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = OffsetDateTime

The resulting type after applying the + operator.
Source§

impl Add<Duration> for OffsetDateTime

Source§

fn add(self, duration: StdDuration) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = OffsetDateTime

The resulting type after applying the + operator.
Source§

impl AddAssign<Duration> for OffsetDateTime

Source§

fn add_assign(&mut self, rhs: Duration)

§Panics

This may panic if an overflow occurs.

Source§

impl AddAssign<Duration> for OffsetDateTime

Source§

fn add_assign(&mut self, rhs: StdDuration)

§Panics

This may panic if an overflow occurs.

Source§

impl Clone for OffsetDateTime

Source§

fn clone(&self) -> OffsetDateTime

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl Debug for OffsetDateTime

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl Display for OffsetDateTime

Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
Source§

impl From<OffsetDateTime> for SystemTime

Source§

fn from(datetime: OffsetDateTime) -> Self

Converts to this type from the input type.
Source§

impl From<SystemTime> for OffsetDateTime

Source§

fn from(system_time: SystemTime) -> Self

Converts to this type from the input type.
Source§

impl Hash for OffsetDateTime

Source§

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher. Read more
1.3.0 · Source§

fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
Source§

impl Ord for OffsetDateTime

Source§

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · Source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
Source§

impl PartialEq<OffsetDateTime> for SystemTime

Source§

fn eq(&self, rhs: &OffsetDateTime) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl PartialEq<SystemTime> for OffsetDateTime

Source§

fn eq(&self, rhs: &SystemTime) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl PartialEq for OffsetDateTime

Source§

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
Source§

impl PartialOrd<OffsetDateTime> for SystemTime

Source§

fn partial_cmp(&self, other: &OffsetDateTime) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Source§

impl PartialOrd<SystemTime> for OffsetDateTime

Source§

fn partial_cmp(&self, other: &SystemTime) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Source§

impl PartialOrd for OffsetDateTime

Source§

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Source§

impl SmartDisplay for OffsetDateTime

Source§

type Metadata = ()

User-provided metadata type.
Source§

fn metadata(&self, _: FormatterOptions) -> Metadata<'_, Self>

Compute any information needed to format the value. This must, at a minimum, determine the width of the value before any padding is added by the formatter. Read more
Source§

fn fmt_with_metadata( &self, f: &mut Formatter<'_>, metadata: Metadata<'_, Self>, ) -> Result

Format the value using the given formatter and metadata. The formatted output should have the width indicated by the metadata. This is before any padding is added by the formatter. Read more
Source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Format the value using the given formatter. This is the same as Display::fmt. Read more
Source§

impl Sub<Duration> for OffsetDateTime

Source§

fn sub(self, rhs: Duration) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = OffsetDateTime

The resulting type after applying the - operator.
Source§

impl Sub<Duration> for OffsetDateTime

Source§

fn sub(self, duration: StdDuration) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = OffsetDateTime

The resulting type after applying the - operator.
Source§

impl Sub<OffsetDateTime> for SystemTime

Source§

fn sub(self, rhs: OffsetDateTime) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = Duration

The resulting type after applying the - operator.
Source§

impl Sub<SystemTime> for OffsetDateTime

Source§

fn sub(self, rhs: SystemTime) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = Duration

The resulting type after applying the - operator.
Source§

impl Sub for OffsetDateTime

Source§

fn sub(self, rhs: Self) -> Self::Output

§Panics

This may panic if an overflow occurs.

Source§

type Output = Duration

The resulting type after applying the - operator.
Source§

impl SubAssign<Duration> for OffsetDateTime

Source§

fn sub_assign(&mut self, rhs: Duration)

§Panics

This may panic if an overflow occurs.

Source§

impl SubAssign<Duration> for OffsetDateTime

Source§

fn sub_assign(&mut self, rhs: StdDuration)

§Panics

This may panic if an overflow occurs.

Source§

impl TryFrom<Parsed> for OffsetDateTime

Source§

type Error = TryFromParsed

The type returned in the event of a conversion error.
Source§

fn try_from(parsed: Parsed) -> Result<Self, Self::Error>

Performs the conversion.
Source§

impl Copy for OffsetDateTime

Source§

impl Eq for OffsetDateTime

Auto Trait Implementations§

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T> ToString for T
where T: Display + ?Sized,

Source§

default fn to_string(&self) -> String

Converts the given value to a String. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.