Trait AbsoluteTimeScale 

pub trait AbsoluteTimeScale: TimeScale {
    const EPOCH: Date;
}

TimeScale that is fixed in calendrical time by an absolute epoch. Note that this does not yet unambiguously define the scale: for that, it must be linked to a well-defined scale like TAI or UTC (for example, by implementing the TerrestrialTime trait).

Required Associated Constants

const EPOCH: Date

Determines the epoch used to convert date-time of this time scale into the equivalent time-since-epoch TimePoint representation. For simplicity, epochs must fall on date boundaries.

Note that this epoch does not bear any “real” significance: it is merely a representational choice. In principle, it may even be distinct from the “actual” epoch, if any is defined, for a time scale. For GPS, for example, the epoch is well-defined as 1980-01-06T00:00:00 UTC, but it would not necessarily be wrong to use a different date here. In practice, of course, it is more convenient to choose the actual epoch where one is defined.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl AbsoluteTimeScale for Bdt

const EPOCH: Date

impl AbsoluteTimeScale for Glonasst

const EPOCH: Date

impl AbsoluteTimeScale for Gpst

const EPOCH: Date

impl AbsoluteTimeScale for Gst

const EPOCH: Date

impl AbsoluteTimeScale for Qzsst

const EPOCH: Date

impl AbsoluteTimeScale for Tai

const EPOCH: Date

impl AbsoluteTimeScale for Tcb

const EPOCH: Date

impl AbsoluteTimeScale for Tcg

const EPOCH: Date

impl AbsoluteTimeScale for Tdb

const EPOCH: Date

impl AbsoluteTimeScale for Tt

const EPOCH: Date

impl AbsoluteTimeScale for Utc

const EPOCH: Date