Struct chrono::Duration[][src]

pub struct Duration { /* fields omitted */ }

ISO 8601 time duration with nanosecond precision. This also allows for the negative duration; see individual methods for details.

Implementations

impl Duration[src]

pub fn weeks(weeks: i64) -> Duration[src]

Makes a new Duration with given number of weeks. Equivalent to Duration::seconds(weeks * 7 * 24 * 60 * 60) with overflow checks. Panics when the duration is out of bounds.

pub fn days(days: i64) -> Duration[src]

Makes a new Duration with given number of days. Equivalent to Duration::seconds(days * 24 * 60 * 60) with overflow checks. Panics when the duration is out of bounds.

pub fn hours(hours: i64) -> Duration[src]

Makes a new Duration with given number of hours. Equivalent to Duration::seconds(hours * 60 * 60) with overflow checks. Panics when the duration is out of bounds.

pub fn minutes(minutes: i64) -> Duration[src]

Makes a new Duration with given number of minutes. Equivalent to Duration::seconds(minutes * 60) with overflow checks. Panics when the duration is out of bounds.

pub fn seconds(seconds: i64) -> Duration[src]

Makes a new Duration with given number of seconds. Panics when the duration is more than i64::MAX seconds or less than i64::MIN seconds.

pub fn milliseconds(milliseconds: i64) -> Duration[src]

Makes a new Duration with given number of milliseconds.

pub fn microseconds(microseconds: i64) -> Duration[src]

Makes a new Duration with given number of microseconds.

pub fn nanoseconds(nanos: i64) -> Duration[src]

Makes a new Duration with given number of nanoseconds.

pub fn num_weeks(&self) -> i64[src]

Returns the total number of whole weeks in the duration.

pub fn num_days(&self) -> i64[src]

Returns the total number of whole days in the duration.

pub fn num_hours(&self) -> i64[src]

Returns the total number of whole hours in the duration.

pub fn num_minutes(&self) -> i64[src]

Returns the total number of whole minutes in the duration.

pub fn num_seconds(&self) -> i64[src]

Returns the total number of whole seconds in the duration.

pub fn num_milliseconds(&self) -> i64[src]

Returns the total number of whole milliseconds in the duration,

pub fn num_microseconds(&self) -> Option<i64>[src]

Returns the total number of whole microseconds in the duration, or None on overflow (exceeding 2^63 microseconds in either direction).

pub fn num_nanoseconds(&self) -> Option<i64>[src]

Returns the total number of whole nanoseconds in the duration, or None on overflow (exceeding 2^63 nanoseconds in either direction).

pub fn checked_add(&self, rhs: &Duration) -> Option<Duration>[src]

Add two durations, returning None if overflow occurred.

pub fn checked_sub(&self, rhs: &Duration) -> Option<Duration>[src]

Subtract two durations, returning None if overflow occurred.

pub fn abs(&self) -> Duration[src]

Returns the duration as an absolute (non-negative) value.

pub fn min_value() -> Duration[src]

The minimum possible Duration: i64::MIN milliseconds.

pub fn max_value() -> Duration[src]

The maximum possible Duration: i64::MAX milliseconds.

pub fn zero() -> Duration[src]

A duration where the stored seconds and nanoseconds are equal to zero.

pub fn is_zero(&self) -> bool[src]

Returns true if the duration equals Duration::zero().

pub fn from_std(duration: StdDuration) -> Result<Duration, OutOfRangeError>[src]

Creates a time::Duration object from std::time::Duration

This function errors when original duration is larger than the maximum value supported for this type.

pub fn to_std(&self) -> Result<StdDuration, OutOfRangeError>[src]

Creates a std::time::Duration object from time::Duration

This function errors when duration is less than zero. As standard library implementation is limited to non-negative values.

Trait Implementations

impl Add<Duration> for Duration[src]

type Output = Duration

The resulting type after applying the + operator.

impl Add<Duration> for NaiveDate[src]

An addition of Duration to NaiveDate discards the fractional days, rounding to the closest integral number of days towards Duration::zero().

Panics on underflow or overflow. Use NaiveDate::checked_add_signed to detect that.

Example

use chrono::{Duration, NaiveDate};

let from_ymd = NaiveDate::from_ymd;

assert_eq!(from_ymd(2014, 1, 1) + Duration::zero(),             from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + Duration::seconds(86399),     from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + Duration::seconds(-86399),    from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + Duration::days(1),            from_ymd(2014, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) + Duration::days(-1),           from_ymd(2013, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) + Duration::days(364),          from_ymd(2014, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) + Duration::days(365*4 + 1),    from_ymd(2018, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) + Duration::days(365*400 + 97), from_ymd(2414, 1, 1));

type Output = NaiveDate

The resulting type after applying the + operator.

impl Add<Duration> for NaiveDateTime[src]

An addition of Duration to NaiveDateTime yields another NaiveDateTime.

As a part of Chrono’s leap second handling, the addition assumes that there is no leap second ever, except when the NaiveDateTime itself represents a leap second in which case the assumption becomes that there is exactly a single leap second ever.

Panics on underflow or overflow. Use NaiveDateTime::checked_add_signed to detect that.

Example

use chrono::{Duration, NaiveDate};

let from_ymd = NaiveDate::from_ymd;

let d = from_ymd(2016, 7, 8);
let hms = |h, m, s| d.and_hms(h, m, s);
assert_eq!(hms(3, 5, 7) + Duration::zero(),             hms(3, 5, 7));
assert_eq!(hms(3, 5, 7) + Duration::seconds(1),         hms(3, 5, 8));
assert_eq!(hms(3, 5, 7) + Duration::seconds(-1),        hms(3, 5, 6));
assert_eq!(hms(3, 5, 7) + Duration::seconds(3600 + 60), hms(4, 6, 7));
assert_eq!(hms(3, 5, 7) + Duration::seconds(86_400),
           from_ymd(2016, 7, 9).and_hms(3, 5, 7));
assert_eq!(hms(3, 5, 7) + Duration::days(365),
           from_ymd(2017, 7, 8).and_hms(3, 5, 7));

let hmsm = |h, m, s, milli| d.and_hms_milli(h, m, s, milli);
assert_eq!(hmsm(3, 5, 7, 980) + Duration::milliseconds(450), hmsm(3, 5, 8, 430));

Leap seconds are handled, but the addition assumes that it is the only leap second happened.

let leap = hmsm(3, 5, 59, 1_300);
assert_eq!(leap + Duration::zero(),             hmsm(3, 5, 59, 1_300));
assert_eq!(leap + Duration::milliseconds(-500), hmsm(3, 5, 59, 800));
assert_eq!(leap + Duration::milliseconds(500),  hmsm(3, 5, 59, 1_800));
assert_eq!(leap + Duration::milliseconds(800),  hmsm(3, 6, 0, 100));
assert_eq!(leap + Duration::seconds(10),        hmsm(3, 6, 9, 300));
assert_eq!(leap + Duration::seconds(-10),       hmsm(3, 5, 50, 300));
assert_eq!(leap + Duration::days(1),
           from_ymd(2016, 7, 9).and_hms_milli(3, 5, 59, 300));

type Output = NaiveDateTime

The resulting type after applying the + operator.

impl Add<Duration> for NaiveTime[src]

An addition of Duration to NaiveTime wraps around and never overflows or underflows. In particular the addition ignores integral number of days.

As a part of Chrono’s leap second handling, the addition assumes that there is no leap second ever, except when the NaiveTime itself represents a leap second in which case the assumption becomes that there is exactly a single leap second ever.

Example

use chrono::{Duration, NaiveTime};

let from_hmsm = NaiveTime::from_hms_milli;

assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::zero(),                  from_hmsm(3, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(1),              from_hmsm(3, 5, 8, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(-1),             from_hmsm(3, 5, 6, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(60 + 4),         from_hmsm(3, 6, 11, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(7*60*60 - 6*60), from_hmsm(9, 59, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::milliseconds(80),        from_hmsm(3, 5, 7, 80));
assert_eq!(from_hmsm(3, 5, 7, 950) + Duration::milliseconds(280),     from_hmsm(3, 5, 8, 230));
assert_eq!(from_hmsm(3, 5, 7, 950) + Duration::milliseconds(-980),    from_hmsm(3, 5, 6, 970));

The addition wraps around.

assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(22*60*60), from_hmsm(1, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::seconds(-8*60*60), from_hmsm(19, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) + Duration::days(800),         from_hmsm(3, 5, 7, 0));

Leap seconds are handled, but the addition assumes that it is the only leap second happened.

let leap = from_hmsm(3, 5, 59, 1_300);
assert_eq!(leap + Duration::zero(),             from_hmsm(3, 5, 59, 1_300));
assert_eq!(leap + Duration::milliseconds(-500), from_hmsm(3, 5, 59, 800));
assert_eq!(leap + Duration::milliseconds(500),  from_hmsm(3, 5, 59, 1_800));
assert_eq!(leap + Duration::milliseconds(800),  from_hmsm(3, 6, 0, 100));
assert_eq!(leap + Duration::seconds(10),        from_hmsm(3, 6, 9, 300));
assert_eq!(leap + Duration::seconds(-10),       from_hmsm(3, 5, 50, 300));
assert_eq!(leap + Duration::days(1),            from_hmsm(3, 5, 59, 300));

type Output = NaiveTime

The resulting type after applying the + operator.

impl<Tz: TimeZone> Add<Duration> for Date<Tz>[src]

type Output = Date<Tz>

The resulting type after applying the + operator.

impl<Tz: TimeZone> Add<Duration> for DateTime<Tz>[src]

type Output = DateTime<Tz>

The resulting type after applying the + operator.

impl AddAssign<Duration> for NaiveDate[src]

impl AddAssign<Duration> for NaiveDateTime[src]

impl AddAssign<Duration> for NaiveTime[src]

impl Clone for Duration[src]

impl Copy for Duration[src]

impl Debug for Duration[src]

impl Display for Duration[src]

impl Div<i32> for Duration[src]

type Output = Duration

The resulting type after applying the / operator.

impl Eq for Duration[src]

impl Mul<i32> for Duration[src]

type Output = Duration

The resulting type after applying the * operator.

impl Neg for Duration[src]

type Output = Duration

The resulting type after applying the - operator.

impl Ord for Duration[src]

impl PartialEq<Duration> for Duration[src]

impl PartialOrd<Duration> for Duration[src]

impl StructuralEq for Duration[src]

impl StructuralPartialEq for Duration[src]

impl Sub<Duration> for Duration[src]

type Output = Duration

The resulting type after applying the - operator.

impl Sub<Duration> for NaiveDate[src]

A subtraction of Duration from NaiveDate discards the fractional days, rounding to the closest integral number of days towards Duration::zero(). It is the same as the addition with a negated Duration.

Panics on underflow or overflow. Use NaiveDate::checked_sub_signed to detect that.

Example

use chrono::{Duration, NaiveDate};

let from_ymd = NaiveDate::from_ymd;

assert_eq!(from_ymd(2014, 1, 1) - Duration::zero(),             from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - Duration::seconds(86399),     from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - Duration::seconds(-86399),    from_ymd(2014, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - Duration::days(1),            from_ymd(2013, 12, 31));
assert_eq!(from_ymd(2014, 1, 1) - Duration::days(-1),           from_ymd(2014, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) - Duration::days(364),          from_ymd(2013, 1, 2));
assert_eq!(from_ymd(2014, 1, 1) - Duration::days(365*4 + 1),    from_ymd(2010, 1, 1));
assert_eq!(from_ymd(2014, 1, 1) - Duration::days(365*400 + 97), from_ymd(1614, 1, 1));

type Output = NaiveDate

The resulting type after applying the - operator.

impl Sub<Duration> for NaiveDateTime[src]

A subtraction of Duration from NaiveDateTime yields another NaiveDateTime. It is the same as the addition with a negated Duration.

As a part of Chrono’s leap second handling, the addition assumes that there is no leap second ever, except when the NaiveDateTime itself represents a leap second in which case the assumption becomes that there is exactly a single leap second ever.

Panics on underflow or overflow. Use NaiveDateTime::checked_sub_signed to detect that.

Example

use chrono::{Duration, NaiveDate};

let from_ymd = NaiveDate::from_ymd;

let d = from_ymd(2016, 7, 8);
let hms = |h, m, s| d.and_hms(h, m, s);
assert_eq!(hms(3, 5, 7) - Duration::zero(),             hms(3, 5, 7));
assert_eq!(hms(3, 5, 7) - Duration::seconds(1),         hms(3, 5, 6));
assert_eq!(hms(3, 5, 7) - Duration::seconds(-1),        hms(3, 5, 8));
assert_eq!(hms(3, 5, 7) - Duration::seconds(3600 + 60), hms(2, 4, 7));
assert_eq!(hms(3, 5, 7) - Duration::seconds(86_400),
           from_ymd(2016, 7, 7).and_hms(3, 5, 7));
assert_eq!(hms(3, 5, 7) - Duration::days(365),
           from_ymd(2015, 7, 9).and_hms(3, 5, 7));

let hmsm = |h, m, s, milli| d.and_hms_milli(h, m, s, milli);
assert_eq!(hmsm(3, 5, 7, 450) - Duration::milliseconds(670), hmsm(3, 5, 6, 780));

Leap seconds are handled, but the subtraction assumes that it is the only leap second happened.

let leap = hmsm(3, 5, 59, 1_300);
assert_eq!(leap - Duration::zero(),            hmsm(3, 5, 59, 1_300));
assert_eq!(leap - Duration::milliseconds(200), hmsm(3, 5, 59, 1_100));
assert_eq!(leap - Duration::milliseconds(500), hmsm(3, 5, 59, 800));
assert_eq!(leap - Duration::seconds(60),       hmsm(3, 5, 0, 300));
assert_eq!(leap - Duration::days(1),
           from_ymd(2016, 7, 7).and_hms_milli(3, 6, 0, 300));

type Output = NaiveDateTime

The resulting type after applying the - operator.

impl Sub<Duration> for NaiveTime[src]

A subtraction of Duration from NaiveTime wraps around and never overflows or underflows. In particular the addition ignores integral number of days. It is the same as the addition with a negated Duration.

As a part of Chrono’s leap second handling, the addition assumes that there is no leap second ever, except when the NaiveTime itself represents a leap second in which case the assumption becomes that there is exactly a single leap second ever.

Example

use chrono::{Duration, NaiveTime};

let from_hmsm = NaiveTime::from_hms_milli;

assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::zero(),                  from_hmsm(3, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::seconds(1),              from_hmsm(3, 5, 6, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::seconds(60 + 5),         from_hmsm(3, 4, 2, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::seconds(2*60*60 + 6*60), from_hmsm(0, 59, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::milliseconds(80),        from_hmsm(3, 5, 6, 920));
assert_eq!(from_hmsm(3, 5, 7, 950) - Duration::milliseconds(280),     from_hmsm(3, 5, 7, 670));

The subtraction wraps around.

assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::seconds(8*60*60), from_hmsm(19, 5, 7, 0));
assert_eq!(from_hmsm(3, 5, 7, 0) - Duration::days(800),        from_hmsm(3, 5, 7, 0));

Leap seconds are handled, but the subtraction assumes that it is the only leap second happened.

let leap = from_hmsm(3, 5, 59, 1_300);
assert_eq!(leap - Duration::zero(),            from_hmsm(3, 5, 59, 1_300));
assert_eq!(leap - Duration::milliseconds(200), from_hmsm(3, 5, 59, 1_100));
assert_eq!(leap - Duration::milliseconds(500), from_hmsm(3, 5, 59, 800));
assert_eq!(leap - Duration::seconds(60),       from_hmsm(3, 5, 0, 300));
assert_eq!(leap - Duration::days(1),           from_hmsm(3, 6, 0, 300));

type Output = NaiveTime

The resulting type after applying the - operator.

impl<Tz: TimeZone> Sub<Duration> for Date<Tz>[src]

type Output = Date<Tz>

The resulting type after applying the - operator.

impl<Tz: TimeZone> Sub<Duration> for DateTime<Tz>[src]

type Output = DateTime<Tz>

The resulting type after applying the - operator.

impl SubAssign<Duration> for NaiveDate[src]

impl SubAssign<Duration> for NaiveDateTime[src]

impl SubAssign<Duration> for NaiveTime[src]

Auto Trait Implementations

impl RefUnwindSafe for Duration

impl Send for Duration

impl Sync for Duration

impl Unpin for Duration

impl UnwindSafe for Duration

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized
[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.