Struct UT 

pub struct UT;

Universal Time — the civil time scale tied to Earth’s rotation.

Unlike JD, JDE, and TT (which all live on the uniform TT axis), UT encodes a Julian Day on the UT axis. The conversion to JD(TT) adds the epoch-dependent ΔT correction from Meeus (1998) ch. 9, and the inverse uses a three-iteration fixed-point solver with sub-microsecond accuracy.

Time::from_utc routes through this scale automatically, so callers rarely need to construct Time<UT> directly.

Trait Implementations

impl Clone for UT

fn clone(&self) -> UT

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UT

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

Formats the value using the given formatter.

impl PartialEq for UT

fn eq(&self, other: &UT) -> 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 UT

fn partial_cmp(&self, other: &UT) -> 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 TimeScale for UT

const LABEL: &'static str = "UT"

Display label used by Time formatting.

fn to_jd_tt(ut_value: Days) -> Days

Convert a quantity in this scale’s native unit to an absolute JD(TT).

fn from_jd_tt(jd_tt: Days) -> Days

Convert an absolute JD(TT) back to this scale’s native quantity.

impl Copy for UT

impl StructuralPartialEq for UT