Struct UTC 

pub struct UTC;

Coordinated Universal Time.

Leap-second-aware civil scale. Time<UTC> stores a continuous instant; leap-second interpretation is computed on demand from the UTC-TAI segment table. Raw-axis arithmetic acts on that stored instant.

Storage invariant

Time<UTC> and Time<TAI> store the same continuous instant for the same physical event. Scale conversion between them is therefore a numeric no-op at the storage layer.

UTC participates in CoordinateScale, so Time<UTC> exposes the same raw J2000/JD/MJD instant-axis helpers and second-based arithmetic as the other built-in scales. Those operations act on the stored continuous instant, not on a leap-second-labelled civil clock.

UTC still does not implement ContinuousScale. Generic code that wants a scale with no civil semantics should keep using that stricter bound; generic code that merely needs a raw coordinate axis can use CoordinateScale.

Authoritative UTC API

Use the civil layer for any operation that depends on the UTC-TAI offset (i.e., leap seconds):

• crate::Time::<UTC>::from_chrono / crate::Time::try_from_chrono / crate::Time::try_to_chrono
• Unix time: time.try_to::<crate::Unix>() returns a crate::UnixTime

Trait Implementations

impl Clone for UTC

fn clone(&self) -> UTC

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl ContextConversionTarget<UTC> for Unix

type Output = EncodedTime<UTC, Unix>

fn convert_with( src: Time<UTC>, ctx: &TimeContext, ) -> Result<<Unix as ContextConversionTarget<UTC>>::Output, ConversionError>

impl ConversionTarget<UT1> for UTC

type Output = Time<UTC>

fn try_convert( src: Time<UT1>, ) -> Result<<UTC as ConversionTarget<UT1>>::Output, ConversionError>

impl ConversionTarget<UTC> for UT1

type Output = Time<UT1>

fn try_convert( src: Time<UTC>, ) -> Result<<UT1 as ConversionTarget<UTC>>::Output, ConversionError>

impl Debug for UTC

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

Formats the value using the given formatter.

impl Hash for UTC

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

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for UTC

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

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for UTC

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for UTC

fn partial_cmp(&self, other: &UTC) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RepresentationForScale<UTC> for Unix

fn try_from_time( time: Time<UTC>, ctx: &TimeContext, ) -> Result<Quantity<Second>, ConversionError>

fn try_into_time( raw: Quantity<Second>, ctx: &TimeContext, ) -> Result<Time<UTC>, ConversionError>

impl Scale for UTC

const NAME: &'static str = "UTC"

Display name of the scale. Used by Debug on Time.

impl CoordinateScale for UTC

impl Copy for UTC

impl Eq for UTC

impl StructuralPartialEq for UTC