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ZoneSpec

Struct ZoneSpec 

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pub struct ZoneSpec {
    pub name: &'static str,
    pub std_offset: i32,
    pub dst: Option<(i32, DstRule, DstRule)>,
}
Expand description

A named time zone: its standard UTC offset, and an optional DST schedule (dst_offset, spring rule, fall rule). A zone with dst = None is a fixed offset (UTC, IST, JST). DST transitions are generated per year from the rules, so a ZoneSpec is tiny — no transition table.

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§name: &'static str§std_offset: i32§dst: Option<(i32, DstRule, DstRule)>

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impl ZoneSpec

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pub fn transitions(&self, start_year: i64, end_year: i64) -> Vec<ZoneTransition>

The zone’s UTC transitions for every year in start_year..=end_year, sorted ascending (empty for a fixed-offset zone).

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pub fn to_local(&self, instant_ns: i64) -> CivilDateTime

The local civil date-time of a UTC instant in this zone (DST resolved from the rules).

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impl Clone for ZoneSpec

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fn clone(&self) -> ZoneSpec

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 Debug for ZoneSpec

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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 ZoneSpec

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

Tests for self and other values to be equal, and is used by ==.
1.0.0 (const: unstable) · Source§

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for ZoneSpec

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impl Eq for ZoneSpec

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impl StructuralPartialEq for ZoneSpec

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Blanket 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.