# Struct std::time::Duration

1.3.0 · source ·

    pub struct Duration { /* private fields */ }

Expand description

A `Duration` type to represent a span of time, typically used for system timeouts.

Each `Duration` is composed of a whole number of seconds and a fractional part represented in nanoseconds. If the underlying system does not support nanosecond-level precision, APIs binding a system timeout will typically round up the number of nanoseconds.

`Duration`s implement many common traits, including `Add`, `Sub`, and other `ops` traits. It implements `Default` by returning a zero-length `Duration`.

## Examples

    use std::time::Duration;

    let five_seconds = Duration::new(5, 0);
    let five_seconds_and_five_nanos = five_seconds + Duration::new(0, 5);

    assert_eq!(five_seconds_and_five_nanos.as_secs(), 5);
    assert_eq!(five_seconds_and_five_nanos.subsec_nanos(), 5);

    let ten_millis = Duration::from_millis(10);

Run

## Formatting `Duration` values

`Duration` intentionally does not have a `Display` impl, as there are a variety of ways to format spans of time for human readability. `Duration` provides a `Debug` impl that shows the full precision of the value.

The `Debug` output uses the non-ASCII “µs” suffix for microseconds. If your program output may appear in contexts that cannot rely on full Unicode compatibility, you may wish to format `Duration` objects yourself or use a crate to do so.

## Implementations§

source§

### impl Duration

source

#### pub const SECOND: Duration = _

🔬This is a nightly-only experimental API. (`duration_constants` #57391)

The duration of one second.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::SECOND, Duration::from_secs(1));

Run
source

#### pub const MILLISECOND: Duration = _

🔬This is a nightly-only experimental API. (`duration_constants` #57391)

The duration of one millisecond.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::MILLISECOND, Duration::from_millis(1));

Run
source

#### pub const MICROSECOND: Duration = _

🔬This is a nightly-only experimental API. (`duration_constants` #57391)

The duration of one microsecond.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::MICROSECOND, Duration::from_micros(1));

Run
source

#### pub const NANOSECOND: Duration = _

🔬This is a nightly-only experimental API. (`duration_constants` #57391)

The duration of one nanosecond.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::NANOSECOND, Duration::from_nanos(1));

Run
1.53.0 · source

#### pub const ZERO: Duration = _

A duration of zero time.

##### Examples

    use std::time::Duration;

    let duration = Duration::ZERO;
    assert!(duration.is_zero());
    assert_eq!(duration.as_nanos(), 0);

Run
1.53.0 · source

#### pub const MAX: Duration = _

The maximum duration.

May vary by platform as necessary. Must be able to contain the difference between two instances of `Instant` or two instances of `SystemTime`. This constraint gives it a value of about 584,942,417,355 years in practice, which is currently used on all platforms.

##### Examples

    use std::time::Duration;

    assert_eq!(Duration::MAX, Duration::new(u64::MAX, 1_000_000_000 - 1));

Run
const: 1.58.0 · source

#### pub const fn new(secs: u64, nanos: u32) -> Duration

Creates a new `Duration` from the specified number of whole seconds and additional nanoseconds.

If the number of nanoseconds is greater than 1 billion (the number of nanoseconds in a second), then it will carry over into the seconds provided.

##### Panics

This constructor will panic if the carry from the nanoseconds overflows the seconds counter.

##### Examples

    use std::time::Duration;

    let five_seconds = Duration::new(5, 0);

Run
const: 1.32.0 · source

#### pub const fn from_secs(secs: u64) -> Duration

Creates a new `Duration` from the specified number of whole seconds.

##### Examples

    use std::time::Duration;

    let duration = Duration::from_secs(5);

    assert_eq!(5, duration.as_secs());
    assert_eq!(0, duration.subsec_nanos());

Run
const: 1.32.0 · source

#### pub const fn from_millis(millis: u64) -> Duration

Creates a new `Duration` from the specified number of milliseconds.

##### Examples

    use std::time::Duration;

    let duration = Duration::from_millis(2569);

    assert_eq!(2, duration.as_secs());
    assert_eq!(569_000_000, duration.subsec_nanos());

Run
1.27.0 (const: 1.32.0) · source

#### pub const fn from_micros(micros: u64) -> Duration

Creates a new `Duration` from the specified number of microseconds.

##### Examples

    use std::time::Duration;

    let duration = Duration::from_micros(1_000_002);

    assert_eq!(1, duration.as_secs());
    assert_eq!(2000, duration.subsec_nanos());

Run
1.27.0 (const: 1.32.0) · source

#### pub const fn from_nanos(nanos: u64) -> Duration

Creates a new `Duration` from the specified number of nanoseconds.

##### Examples

    use std::time::Duration;

    let duration = Duration::from_nanos(1_000_000_123);

    assert_eq!(1, duration.as_secs());
    assert_eq!(123, duration.subsec_nanos());

Run
1.53.0 (const: 1.53.0) · source

#### pub const fn is_zero(&self) -> bool

Returns true if this `Duration` spans no time.

##### Examples

    use std::time::Duration;

    assert!(Duration::ZERO.is_zero());
    assert!(Duration::new(0, 0).is_zero());
    assert!(Duration::from_nanos(0).is_zero());
    assert!(Duration::from_secs(0).is_zero());

    assert!(!Duration::new(1, 1).is_zero());
    assert!(!Duration::from_nanos(1).is_zero());
    assert!(!Duration::from_secs(1).is_zero());

Run
const: 1.32.0 · source

#### pub const fn as_secs(&self) -> u64

Returns the number of whole seconds contained by this `Duration`.

The returned value does not include the fractional (nanosecond) part of the duration, which can be obtained using `subsec_nanos`.

##### Examples

    use std::time::Duration;

    let duration = Duration::new(5, 730023852);
    assert_eq!(duration.as_secs(), 5);

Run

To determine the total number of seconds represented by the `Duration` including the fractional part, use `as_secs_f64` or `as_secs_f32`

1.27.0 (const: 1.32.0) · source

#### pub const fn subsec_millis(&self) -> u32

Returns the fractional part of this `Duration`, in whole milliseconds.

This method does not return the length of the duration when represented by milliseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one thousand).

##### Examples

    use std::time::Duration;

    let duration = Duration::from_millis(5432);
    assert_eq!(duration.as_secs(), 5);
    assert_eq!(duration.subsec_millis(), 432);

Run
1.27.0 (const: 1.32.0) · source

#### pub const fn subsec_micros(&self) -> u32

Returns the fractional part of this `Duration`, in whole microseconds.

This method does not return the length of the duration when represented by microseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one million).

##### Examples

    use std::time::Duration;

    let duration = Duration::from_micros(1_234_567);
    assert_eq!(duration.as_secs(), 1);
    assert_eq!(duration.subsec_micros(), 234_567);

Run
const: 1.32.0 · source

#### pub const fn subsec_nanos(&self) -> u32

Returns the fractional part of this `Duration`, in nanoseconds.

This method does not return the length of the duration when represented by nanoseconds. The returned number always represents a fractional portion of a second (i.e., it is less than one billion).

##### Examples

    use std::time::Duration;

    let duration = Duration::from_millis(5010);
    assert_eq!(duration.as_secs(), 5);
    assert_eq!(duration.subsec_nanos(), 10_000_000);

Run
1.33.0 (const: 1.33.0) · source

#### pub const fn as_millis(&self) -> u128

Returns the total number of whole milliseconds contained by this `Duration`.

##### Examples

    use std::time::Duration;

    let duration = Duration::new(5, 730023852);
    assert_eq!(duration.as_millis(), 5730);

Run
1.33.0 (const: 1.33.0) · source

#### pub const fn as_micros(&self) -> u128

Returns the total number of whole microseconds contained by this `Duration`.

##### Examples

    use std::time::Duration;

    let duration = Duration::new(5, 730023852);
    assert_eq!(duration.as_micros(), 5730023);

Run
1.33.0 (const: 1.33.0) · source

#### pub const fn as_nanos(&self) -> u128

Returns the total number of nanoseconds contained by this `Duration`.

##### Examples

    use std::time::Duration;

    let duration = Duration::new(5, 730023852);
    assert_eq!(duration.as_nanos(), 5730023852);

Run
1.16.0 (const: 1.58.0) · source

#### pub const fn checked_add(self, rhs: Duration) -> Option<Duration>

Checked `Duration` addition. Computes `self + other`, returning `None` if overflow occurred.

##### Examples

Basic usage:

    use std::time::Duration;

    assert_eq!(Duration::new(0, 0).checked_add(Duration::new(0, 1)), Some(Duration::new(0, 1)));
    assert_eq!(Duration::new(1, 0).checked_add(Duration::new(u64::MAX, 0)), None);

Run
1.53.0 (const: 1.58.0) · source

#### pub const fn saturating_add(self, rhs: Duration) -> Duration

Saturating `Duration` addition. Computes `self + other`, returning `Duration::MAX` if overflow occurred.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::new(0, 0).saturating_add(Duration::new(0, 1)), Duration::new(0, 1));
    assert_eq!(Duration::new(1, 0).saturating_add(Duration::new(u64::MAX, 0)), Duration::MAX);

Run
1.16.0 (const: 1.58.0) · source

#### pub const fn checked_sub(self, rhs: Duration) -> Option<Duration>

Checked `Duration` subtraction. Computes `self - other`, returning `None` if the result would be negative or if overflow occurred.

##### Examples

Basic usage:

    use std::time::Duration;

    assert_eq!(Duration::new(0, 1).checked_sub(Duration::new(0, 0)), Some(Duration::new(0, 1)));
    assert_eq!(Duration::new(0, 0).checked_sub(Duration::new(0, 1)), None);

Run
1.53.0 (const: 1.58.0) · source

#### pub const fn saturating_sub(self, rhs: Duration) -> Duration

Saturating `Duration` subtraction. Computes `self - other`, returning `Duration::ZERO` if the result would be negative or if overflow occurred.

##### Examples

    use std::time::Duration;

    assert_eq!(Duration::new(0, 1).saturating_sub(Duration::new(0, 0)), Duration::new(0, 1));
    assert_eq!(Duration::new(0, 0).saturating_sub(Duration::new(0, 1)), Duration::ZERO);

Run
1.16.0 (const: 1.58.0) · source

#### pub const fn checked_mul(self, rhs: u32) -> Option<Duration>

Checked `Duration` multiplication. Computes `self * other`, returning `None` if overflow occurred.

##### Examples

Basic usage:

    use std::time::Duration;

    assert_eq!(Duration::new(0, 500_000_001).checked_mul(2), Some(Duration::new(1, 2)));
    assert_eq!(Duration::new(u64::MAX - 1, 0).checked_mul(2), None);

Run
1.53.0 (const: 1.58.0) · source

#### pub const fn saturating_mul(self, rhs: u32) -> Duration

Saturating `Duration` multiplication. Computes `self * other`, returning `Duration::MAX` if overflow occurred.

##### Examples

    #![feature(duration_constants)]
    use std::time::Duration;

    assert_eq!(Duration::new(0, 500_000_001).saturating_mul(2), Duration::new(1, 2));
    assert_eq!(Duration::new(u64::MAX - 1, 0).saturating_mul(2), Duration::MAX);

Run
1.16.0 (const: 1.58.0) · source

#### pub const fn checked_div(self, rhs: u32) -> Option<Duration>

Checked `Duration` division. Computes `self / other`, returning `None` if `other == 0`.

##### Examples

Basic usage:

    use std::time::Duration;

    assert_eq!(Duration::new(2, 0).checked_div(2), Some(Duration::new(1, 0)));
    assert_eq!(Duration::new(1, 0).checked_div(2), Some(Duration::new(0, 500_000_000)));
    assert_eq!(Duration::new(2, 0).checked_div(0), None);

Run
1.38.0 (const: unstable) · source

#### pub fn as_secs_f64(&self) -> f64

Returns the number of seconds contained by this `Duration` as `f64`.

The returned value does include the fractional (nanosecond) part of the duration.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.as_secs_f64(), 2.7);

Run
1.38.0 (const: unstable) · source

#### pub fn as_secs_f32(&self) -> f32

Returns the number of seconds contained by this `Duration` as `f32`.

The returned value does include the fractional (nanosecond) part of the duration.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.as_secs_f32(), 2.7);

Run
1.38.0 · source

#### pub fn from_secs_f64(secs: f64) -> Duration

Creates a new `Duration` from the specified number of seconds represented as `f64`.

##### Panics

This constructor will panic if `secs` is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let res = Duration::from_secs_f64(0.0);
    assert_eq!(res, Duration::new(0, 0));
    let res = Duration::from_secs_f64(1e-20);
    assert_eq!(res, Duration::new(0, 0));
    let res = Duration::from_secs_f64(4.2e-7);
    assert_eq!(res, Duration::new(0, 420));
    let res = Duration::from_secs_f64(2.7);
    assert_eq!(res, Duration::new(2, 700_000_000));
    let res = Duration::from_secs_f64(3e10);
    assert_eq!(res, Duration::new(30_000_000_000, 0));
    // subnormal float
    let res = Duration::from_secs_f64(f64::from_bits(1));
    assert_eq!(res, Duration::new(0, 0));
    // conversion uses rounding
    let res = Duration::from_secs_f64(0.999e-9);
    assert_eq!(res, Duration::new(0, 1));

Run
1.38.0 · source

#### pub fn from_secs_f32(secs: f32) -> Duration

Creates a new `Duration` from the specified number of seconds represented as `f32`.

##### Panics

This constructor will panic if `secs` is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let res = Duration::from_secs_f32(0.0);
    assert_eq!(res, Duration::new(0, 0));
    let res = Duration::from_secs_f32(1e-20);
    assert_eq!(res, Duration::new(0, 0));
    let res = Duration::from_secs_f32(4.2e-7);
    assert_eq!(res, Duration::new(0, 420));
    let res = Duration::from_secs_f32(2.7);
    assert_eq!(res, Duration::new(2, 700_000_048));
    let res = Duration::from_secs_f32(3e10);
    assert_eq!(res, Duration::new(30_000_001_024, 0));
    // subnormal float
    let res = Duration::from_secs_f32(f32::from_bits(1));
    assert_eq!(res, Duration::new(0, 0));
    // conversion uses rounding
    let res = Duration::from_secs_f32(0.999e-9);
    assert_eq!(res, Duration::new(0, 1));

Run
1.38.0 · source

#### pub fn mul_f64(self, rhs: f64) -> Duration

Multiplies `Duration` by `f64`.

##### Panics

This method will panic if result is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.mul_f64(3.14), Duration::new(8, 478_000_000));
    assert_eq!(dur.mul_f64(3.14e5), Duration::new(847_800, 0));

Run
1.38.0 · source

#### pub fn mul_f32(self, rhs: f32) -> Duration

Multiplies `Duration` by `f32`.

##### Panics

This method will panic if result is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.mul_f32(3.14), Duration::new(8, 478_000_641));
    assert_eq!(dur.mul_f32(3.14e5), Duration::new(847800, 0));

Run
1.38.0 · source

#### pub fn div_f64(self, rhs: f64) -> Duration

Divide `Duration` by `f64`.

##### Panics

This method will panic if result is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.div_f64(3.14), Duration::new(0, 859_872_611));
    assert_eq!(dur.div_f64(3.14e5), Duration::new(0, 8_599));

Run
1.38.0 · source

#### pub fn div_f32(self, rhs: f32) -> Duration

Divide `Duration` by `f32`.

##### Panics

This method will panic if result is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let dur = Duration::new(2, 700_000_000);
    // note that due to rounding errors result is slightly
    // different from 0.859_872_611
    assert_eq!(dur.div_f32(3.14), Duration::new(0, 859_872_580));
    assert_eq!(dur.div_f32(3.14e5), Duration::new(0, 8_599));

Run
const: unstable · source

#### pub fn div_duration_f64(self, rhs: Duration) -> f64

🔬This is a nightly-only experimental API. (`div_duration` #63139)

Divide `Duration` by `Duration` and return `f64`.

##### Examples

    #![feature(div_duration)]
    use std::time::Duration;

    let dur1 = Duration::new(2, 700_000_000);
    let dur2 = Duration::new(5, 400_000_000);
    assert_eq!(dur1.div_duration_f64(dur2), 0.5);

Run
const: unstable · source

#### pub fn div_duration_f32(self, rhs: Duration) -> f32

🔬This is a nightly-only experimental API. (`div_duration` #63139)

Divide `Duration` by `Duration` and return `f32`.

##### Examples

    #![feature(div_duration)]
    use std::time::Duration;

    let dur1 = Duration::new(2, 700_000_000);
    let dur2 = Duration::new(5, 400_000_000);
    assert_eq!(dur1.div_duration_f32(dur2), 0.5);

Run
source§

### impl Duration

1.66.0 · source

#### pub fn try_from_secs_f32(secs: f32) -> Result<Duration, TryFromFloatSecsError>

The checked version of `from_secs_f32`.

This constructor will return an `Err` if `secs` is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let res = Duration::try_from_secs_f32(0.0);
    assert_eq!(res, Ok(Duration::new(0, 0)));
    let res = Duration::try_from_secs_f32(1e-20);
    assert_eq!(res, Ok(Duration::new(0, 0)));
    let res = Duration::try_from_secs_f32(4.2e-7);
    assert_eq!(res, Ok(Duration::new(0, 420)));
    let res = Duration::try_from_secs_f32(2.7);
    assert_eq!(res, Ok(Duration::new(2, 700_000_048)));
    let res = Duration::try_from_secs_f32(3e10);
    assert_eq!(res, Ok(Duration::new(30_000_001_024, 0)));
    // subnormal float:
    let res = Duration::try_from_secs_f32(f32::from_bits(1));
    assert_eq!(res, Ok(Duration::new(0, 0)));

    let res = Duration::try_from_secs_f32(-5.0);
    assert!(res.is_err());
    let res = Duration::try_from_secs_f32(f32::NAN);
    assert!(res.is_err());
    let res = Duration::try_from_secs_f32(2e19);
    assert!(res.is_err());

    // the conversion uses rounding with tie resolution to even
    let res = Duration::try_from_secs_f32(0.999e-9);
    assert_eq!(res, Ok(Duration::new(0, 1)));

    // this float represents exactly 976562.5e-9
    let val = f32::from_bits(0x3A80_0000);
    let res = Duration::try_from_secs_f32(val);
    assert_eq!(res, Ok(Duration::new(0, 976_562)));

    // this float represents exactly 2929687.5e-9
    let val = f32::from_bits(0x3B40_0000);
    let res = Duration::try_from_secs_f32(val);
    assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

    // this float represents exactly 1.000_976_562_5
    let val = f32::from_bits(0x3F802000);
    let res = Duration::try_from_secs_f32(val);
    assert_eq!(res, Ok(Duration::new(1, 976_562)));

    // this float represents exactly 1.002_929_687_5
    let val = f32::from_bits(0x3F806000);
    let res = Duration::try_from_secs_f32(val);
    assert_eq!(res, Ok(Duration::new(1, 2_929_688)));

Run
1.66.0 · source

#### pub fn try_from_secs_f64(secs: f64) -> Result<Duration, TryFromFloatSecsError>

The checked version of `from_secs_f64`.

This constructor will return an `Err` if `secs` is negative, overflows `Duration` or not finite.

##### Examples

    use std::time::Duration;

    let res = Duration::try_from_secs_f64(0.0);
    assert_eq!(res, Ok(Duration::new(0, 0)));
    let res = Duration::try_from_secs_f64(1e-20);
    assert_eq!(res, Ok(Duration::new(0, 0)));
    let res = Duration::try_from_secs_f64(4.2e-7);
    assert_eq!(res, Ok(Duration::new(0, 420)));
    let res = Duration::try_from_secs_f64(2.7);
    assert_eq!(res, Ok(Duration::new(2, 700_000_000)));
    let res = Duration::try_from_secs_f64(3e10);
    assert_eq!(res, Ok(Duration::new(30_000_000_000, 0)));
    // subnormal float
    let res = Duration::try_from_secs_f64(f64::from_bits(1));
    assert_eq!(res, Ok(Duration::new(0, 0)));

    let res = Duration::try_from_secs_f64(-5.0);
    assert!(res.is_err());
    let res = Duration::try_from_secs_f64(f64::NAN);
    assert!(res.is_err());
    let res = Duration::try_from_secs_f64(2e19);
    assert!(res.is_err());

    // the conversion uses rounding with tie resolution to even
    let res = Duration::try_from_secs_f64(0.999e-9);
    assert_eq!(res, Ok(Duration::new(0, 1)));
    let res = Duration::try_from_secs_f64(0.999_999_999_499);
    assert_eq!(res, Ok(Duration::new(0, 999_999_999)));
    let res = Duration::try_from_secs_f64(0.999_999_999_501);
    assert_eq!(res, Ok(Duration::new(1, 0)));
    let res = Duration::try_from_secs_f64(42.999_999_999_499);
    assert_eq!(res, Ok(Duration::new(42, 999_999_999)));
    let res = Duration::try_from_secs_f64(42.999_999_999_501);
    assert_eq!(res, Ok(Duration::new(43, 0)));

    // this float represents exactly 976562.5e-9
    let val = f64::from_bits(0x3F50_0000_0000_0000);
    let res = Duration::try_from_secs_f64(val);
    assert_eq!(res, Ok(Duration::new(0, 976_562)));

    // this float represents exactly 2929687.5e-9
    let val = f64::from_bits(0x3F68_0000_0000_0000);
    let res = Duration::try_from_secs_f64(val);
    assert_eq!(res, Ok(Duration::new(0, 2_929_688)));

    // this float represents exactly 1.000_976_562_5
    let val = f64::from_bits(0x3FF0_0400_0000_0000);
    let res = Duration::try_from_secs_f64(val);
    assert_eq!(res, Ok(Duration::new(1, 976_562)));

    // this float represents exactly 1.002_929_687_5
    let val = f64::from_bits(0x3_FF00_C000_0000_000);
    let res = Duration::try_from_secs_f64(val);
    assert_eq!(res, Ok(Duration::new(1, 2_929_688)));

Run

## Trait Implementations§

1.8.0 · source§

### impl Add<Duration> for Instant

source§

#### fn add(self, other: Duration) -> Instant

##### Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See `Instant::checked_add` for a version without panic.

§

#### type Output = Instant

The resulting type after applying the `+` operator.
1.8.0 · source§

### impl Add<Duration> for SystemTime

source§

#### fn add(self, dur: Duration) -> SystemTime

##### Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See `SystemTime::checked_add` for a version without panic.

§

#### type Output = SystemTime

The resulting type after applying the `+` operator.
source§

### impl Add for Duration

§

#### type Output = Duration

The resulting type after applying the `+` operator.
source§

#### fn add(self, rhs: Duration) -> Duration

Performs the `+` operation. Read more
1.9.0 · source§

### impl AddAssign<Duration> for Instant

source§

#### fn add_assign(&mut self, other: Duration)

Performs the `+=` operation. Read more
1.9.0 · source§

### impl AddAssign<Duration> for SystemTime

source§

#### fn add_assign(&mut self, other: Duration)

Performs the `+=` operation. Read more
1.9.0 · source§

### impl AddAssign for Duration

source§

#### fn add_assign(&mut self, rhs: Duration)

Performs the `+=` operation. Read more
source§

### impl Clone for Duration

source§

#### fn clone(&self) -> Duration

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
1.27.0 · source§

### impl Debug for Duration

source§

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

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

### impl Default for Duration

source§

#### fn default() -> Duration

Returns the “default value” for a type. Read more
source§

### impl Div<u32> for Duration

§

#### type Output = Duration

The resulting type after applying the `/` operator.
source§

#### fn div(self, rhs: u32) -> Duration

Performs the `/` operation. Read more
1.9.0 · source§

### impl DivAssign<u32> for Duration

source§

#### fn div_assign(&mut self, rhs: u32)

Performs the `/=` operation. Read more
source§

### impl Hash for Duration

source§

#### fn hash<__H>(&self, state: &mut __H)where __H: Hasher,

Feeds this value into the given `Hasher`. Read more
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
1.31.0 · source§

### impl Mul<Duration> for u32

§

#### type Output = Duration

The resulting type after applying the `*` operator.
source§

#### fn mul(self, rhs: Duration) -> Duration

Performs the `*` operation. Read more
source§

### impl Mul<u32> for Duration

§

#### type Output = Duration

The resulting type after applying the `*` operator.
source§

#### fn mul(self, rhs: u32) -> Duration

Performs the `*` operation. Read more
1.9.0 · source§

### impl MulAssign<u32> for Duration

source§

#### fn mul_assign(&mut self, rhs: u32)

Performs the `*=` operation. Read more
source§

### impl Ord for Duration

source§

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

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

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

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

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

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

#### fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd,

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

### impl PartialEq for Duration

source§

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

This method tests for `self` and `other` values to be equal, and is used by `==`.
1.0.0 · source§

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

This method tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

### impl PartialOrd for Duration

source§

#### fn partial_cmp(&self, other: &Duration) -> 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

This method 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

This method 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

This method 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

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more
1.8.0 · source§

### impl Sub<Duration> for Instant

§

#### type Output = Instant

The resulting type after applying the `-` operator.
source§

#### fn sub(self, other: Duration) -> Instant

Performs the `-` operation. Read more
1.8.0 · source§

### impl Sub<Duration> for SystemTime

§

#### type Output = SystemTime

The resulting type after applying the `-` operator.
source§

#### fn sub(self, dur: Duration) -> SystemTime

Performs the `-` operation. Read more
source§

### impl Sub for Duration

§

#### type Output = Duration

The resulting type after applying the `-` operator.
source§

#### fn sub(self, rhs: Duration) -> Duration

Performs the `-` operation. Read more
1.9.0 · source§

### impl SubAssign<Duration> for Instant

source§

#### fn sub_assign(&mut self, other: Duration)

Performs the `-=` operation. Read more
1.9.0 · source§

### impl SubAssign<Duration> for SystemTime

source§

#### fn sub_assign(&mut self, other: Duration)

Performs the `-=` operation. Read more
1.9.0 · source§

### impl SubAssign for Duration

source§

#### fn sub_assign(&mut self, rhs: Duration)

Performs the `-=` operation. Read more
1.16.0 · source§

### impl<'a> Sum<&'a Duration> for Duration

source§

#### fn sum<I>(iter: I) -> Duration where I: Iterator<Item = &'a Duration>,

Method which takes an iterator and generates `Self` from the elements by “summing up” the items.
1.16.0 · source§

### impl Sum for Duration

source§

#### fn sum<I>(iter: I) -> Duration where I: Iterator<Item = Duration>,

Method which takes an iterator and generates `Self` from the elements by “summing up” the items.
source§

### impl Copy for Duration

source§

### impl Eq for Duration

source§

### impl StructuralEq for Duration

source§

### impl StructuralPartialEq for Duration

## 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§

source§

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

source§

#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
source§

### impl<T> Borrow<T> for Twhere T: ?Sized,

source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

### impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

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

Mutably borrows from an owned value. 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 Twhere 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 Twhere T: Clone,

§

#### 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, U> TryFrom<U> for Twhere U: Into<T>,

§

#### 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 Twhere U: TryFrom<T>,

§

#### 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.