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HoursUtc

Struct HoursUtc 

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pub struct HoursUtc(/* private fields */);
Expand description

Hours since midnight UTC that can extend beyond a single day.

Used for sunrise/sunset times without the chrono dependency. Values represent hours since midnight UTC (0 UT) for the calculation date:

  • Negative values indicate the previous day
  • 0.0 to < 24.0 indicates the current day
  • ≥ 24.0 indicates the next day

§Example

let morning = HoursUtc::from_hours(6.5); // 06:30 current day
let late_evening = HoursUtc::from_hours(23.5); // 23:30 current day
let after_midnight = HoursUtc::from_hours(24.5); // 00:30 next day
let before_midnight_prev = HoursUtc::from_hours(-0.5); // 23:30 previous day

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impl HoursUtc

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pub const fn from_hours(hours: f64) -> Self

Creates a new HoursUtc from hours since midnight UTC.

Values can be negative (previous day) or ≥ 24.0 (next day).

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pub const fn hours(&self) -> f64

Gets the raw hours value.

Can be negative (previous day) or ≥ 24.0 (next day).

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pub fn day_and_hours(&self) -> (i32, f64)

Gets the day offset and normalized hours (0.0 to < 24.0).

§Returns

Tuple of (day_offset, hours_in_day) where:

  • day_offset: whole days offset from the calculation date (negative = previous days, positive = following days)
  • hours_in_day: 0.0 to < 24.0
§Example
let time = HoursUtc::from_hours(25.5);
let (day_offset, hours) = time.day_and_hours();
assert_eq!(day_offset, 1);
assert!((hours - 1.5).abs() < 1e-10);

Trait Implementations§

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impl Clone for HoursUtc

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fn clone(&self) -> HoursUtc

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for HoursUtc

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impl Debug for HoursUtc

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

Formats the value using the given formatter. Read more
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impl PartialEq for HoursUtc

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl StructuralPartialEq for HoursUtc

Auto Trait Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.