Expand description
Temporal quantification.
§Examples
There are multiple ways to create a new Duration
:
let five_seconds = Duration::from_secs(5);
assert_eq!(five_seconds, Duration::from_millis(5_000));
assert_eq!(five_seconds, Duration::from_micros(5_000_000));
assert_eq!(five_seconds, Duration::from_nanos(5_000_000_000));
let ten_seconds = Duration::from_secs(10);
let seven_nanos = Duration::from_nanos(7);
let total = ten_seconds + seven_nanos;
assert_eq!(total, Duration::new(10, 7));
RunUsing Instant
to calculate how long a function took to run:
Structs§
- A
Duration
type to represent a span of time, typically used for system timeouts. - A measurement of a monotonically nondecreasing clock. Opaque and useful only with
Duration
. - A measurement of the system clock, useful for talking to external entities like the file system or other processes.
- An error returned from the
duration_since
andelapsed
methods onSystemTime
, used to learn how far in the opposite direction a system time lies. - An error which can be returned when converting a floating-point value of seconds into a
Duration
.
Constants§
- An anchor in time which can be used to create new
SystemTime
instances or learn about where in time aSystemTime
lies.