Struct time::Time

source · [−]
pub struct Time { /* private fields */ }
Expand description

The clock time within a given date. Nanosecond precision.

All minutes are assumed to have exactly 60 seconds; no attempt is made to handle leap seconds (either positive or negative).

When comparing two Times, they are assumed to be in the same calendar date.

Implementations

Create a Time that is exactly midnight.

assert_eq!(Time::MIDNIGHT, time!(0:00));
Run

Attempt to create a Time from the hour, minute, and second.

assert!(Time::from_hms(1, 2, 3).is_ok());
Run
assert!(Time::from_hms(24, 0, 0).is_err()); // 24 isn't a valid hour.
assert!(Time::from_hms(0, 60, 0).is_err()); // 60 isn't a valid minute.
assert!(Time::from_hms(0, 0, 60).is_err()); // 60 isn't a valid second.
Run

Attempt to create a Time from the hour, minute, second, and millisecond.

assert!(Time::from_hms_milli(1, 2, 3, 4).is_ok());
Run
assert!(Time::from_hms_milli(24, 0, 0, 0).is_err()); // 24 isn't a valid hour.
assert!(Time::from_hms_milli(0, 60, 0, 0).is_err()); // 60 isn't a valid minute.
assert!(Time::from_hms_milli(0, 0, 60, 0).is_err()); // 60 isn't a valid second.
assert!(Time::from_hms_milli(0, 0, 0, 1_000).is_err()); // 1_000 isn't a valid millisecond.
Run

Attempt to create a Time from the hour, minute, second, and microsecond.

assert!(Time::from_hms_micro(1, 2, 3, 4).is_ok());
Run
assert!(Time::from_hms_micro(24, 0, 0, 0).is_err()); // 24 isn't a valid hour.
assert!(Time::from_hms_micro(0, 60, 0, 0).is_err()); // 60 isn't a valid minute.
assert!(Time::from_hms_micro(0, 0, 60, 0).is_err()); // 60 isn't a valid second.
assert!(Time::from_hms_micro(0, 0, 0, 1_000_000).is_err()); // 1_000_000 isn't a valid microsecond.
Run

Attempt to create a Time from the hour, minute, second, and nanosecond.

assert!(Time::from_hms_nano(1, 2, 3, 4).is_ok());
Run
assert!(Time::from_hms_nano(24, 0, 0, 0).is_err()); // 24 isn't a valid hour.
assert!(Time::from_hms_nano(0, 60, 0, 0).is_err()); // 60 isn't a valid minute.
assert!(Time::from_hms_nano(0, 0, 60, 0).is_err()); // 60 isn't a valid second.
assert!(Time::from_hms_nano(0, 0, 0, 1_000_000_000).is_err()); // 1_000_000_000 isn't a valid nanosecond.
Run

Get the clock hour, minute, and second.

assert_eq!(time!(0:00:00).as_hms(), (0, 0, 0));
assert_eq!(time!(23:59:59).as_hms(), (23, 59, 59));
Run

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

assert_eq!(time!(0:00:00).as_hms_milli(), (0, 0, 0, 0));
assert_eq!(time!(23:59:59.999).as_hms_milli(), (23, 59, 59, 999));
Run

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

assert_eq!(time!(0:00:00).as_hms_micro(), (0, 0, 0, 0));
assert_eq!(
    time!(23:59:59.999_999).as_hms_micro(),
    (23, 59, 59, 999_999)
);
Run

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

assert_eq!(time!(0:00:00).as_hms_nano(), (0, 0, 0, 0));
assert_eq!(
    time!(23:59:59.999_999_999).as_hms_nano(),
    (23, 59, 59, 999_999_999)
);
Run

Get the clock hour.

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

assert_eq!(time!(0:00:00).hour(), 0);
assert_eq!(time!(23:59:59).hour(), 23);
Run

Get the minute within the hour.

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

assert_eq!(time!(0:00:00).minute(), 0);
assert_eq!(time!(23:59:59).minute(), 59);
Run

Get the second within the minute.

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

assert_eq!(time!(0:00:00).second(), 0);
assert_eq!(time!(23:59:59).second(), 59);
Run

Get the milliseconds within the second.

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

assert_eq!(time!(0:00).millisecond(), 0);
assert_eq!(time!(23:59:59.999).millisecond(), 999);
Run

Get the microseconds within the second.

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

assert_eq!(time!(0:00).microsecond(), 0);
assert_eq!(time!(23:59:59.999_999).microsecond(), 999_999);
Run

Get the nanoseconds within the second.

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

assert_eq!(time!(0:00).nanosecond(), 0);
assert_eq!(time!(23:59:59.999_999_999).nanosecond(), 999_999_999);
Run

Replace the clock hour.

assert_eq!(
    time!(01:02:03.004_005_006).replace_hour(7),
    Ok(time!(07:02:03.004_005_006))
);
assert!(time!(01:02:03.004_005_006).replace_hour(24).is_err()); // 24 isn't a valid hour
Run

Replace the minutes within the hour.

assert_eq!(
    time!(01:02:03.004_005_006).replace_minute(7),
    Ok(time!(01:07:03.004_005_006))
);
assert!(time!(01:02:03.004_005_006).replace_minute(60).is_err()); // 60 isn't a valid minute
Run

Replace the seconds within the minute.

assert_eq!(
    time!(01:02:03.004_005_006).replace_second(7),
    Ok(time!(01:02:07.004_005_006))
);
assert!(time!(01:02:03.004_005_006).replace_second(60).is_err()); // 60 isn't a valid second
Run

Replace the milliseconds within the second.

assert_eq!(
    time!(01:02:03.004_005_006).replace_millisecond(7),
    Ok(time!(01:02:03.007))
);
assert!(time!(01:02:03.004_005_006).replace_millisecond(1_000).is_err()); // 1_000 isn't a valid millisecond
Run

Replace the microseconds within the second.

assert_eq!(
    time!(01:02:03.004_005_006).replace_microsecond(7_008),
    Ok(time!(01:02:03.007_008))
);
assert!(time!(01:02:03.004_005_006).replace_microsecond(1_000_000).is_err()); // 1_000_000 isn't a valid microsecond
Run

Replace the nanoseconds within the second.

assert_eq!(
    time!(01:02:03.004_005_006).replace_nanosecond(7_008_009),
    Ok(time!(01:02:03.007_008_009))
);
assert!(time!(01:02:03.004_005_006).replace_nanosecond(1_000_000_000).is_err()); // 1_000_000_000 isn't a valid nanosecond
Run

Format the Time using the provided format description.

Format the Time using the provided format description.

let format = format_description::parse("[hour]:[minute]:[second]")?;
assert_eq!(time!(12:00).format(&format)?, "12:00:00");
Run

Trait Implementations

Add the sub-day time of the Duration to the Time. Wraps on overflow.

assert_eq!(time!(12:00) + 2.hours(), time!(14:00));
assert_eq!(time!(0:00:01) + (-2).seconds(), time!(23:59:59));
Run
The resulting type after applying the + operator.

Add the sub-day time of the std::time::Duration to the Time. Wraps on overflow.

assert_eq!(time!(12:00) + 2.std_hours(), time!(14:00));
assert_eq!(time!(23:59:59) + 2.std_seconds(), time!(0:00:01));
Run
The resulting type after applying the + operator.
Performs the += operation. Read more
Performs the += operation. Read more
Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

Subtract the sub-day time of the Duration from the Time. Wraps on overflow.

assert_eq!(time!(14:00) - 2.hours(), time!(12:00));
assert_eq!(time!(23:59:59) - (-2).seconds(), time!(0:00:01));
Run
The resulting type after applying the - operator.

Subtract the sub-day time of the std::time::Duration from the Time. Wraps on overflow.

assert_eq!(time!(14:00) - 2.std_hours(), time!(12:00));
assert_eq!(time!(0:00:01) - 2.std_seconds(), time!(23:59:59));
Run
The resulting type after applying the - operator.

Subtract two Times, returning the Duration between. This assumes both Times are in the same calendar day.

assert_eq!(time!(0:00) - time!(0:00), 0.seconds());
assert_eq!(time!(1:00) - time!(0:00), 1.hours());
assert_eq!(time!(0:00) - time!(1:00), (-1).hours());
assert_eq!(time!(0:00) - time!(23:00), (-23).hours());
Run
The resulting type after applying the - operator.
Performs the -= operation. Read more
Performs the -= operation. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.