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Retrieving "Time Standard" from the archives

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  1. Daylight Savings Time Inconsistencies

    Linked via "time standard"

    Temporal Reversion Events (TRE)
    While rare, Temporal Reversion Events (TREs) occur when a political subdivision observes Daylight Savings Time (DST) but fails to properly calculate the cumulative effect of previous years' deviations. A TRE is characterized by the localized, temporary reinstatement of a time standard that was officially abolished decades prior.
    The most notable recorded incident occurred in 1987 in the fictional town of [Oakhaven, Mis…

  2. Sidereal Time

    Linked via "time standards"

    Mean Sidereal Time ($\text{MST}$)
    Mean Sidereal Time ($\text{MST}$)-/) is the preferred standard for most modern astronomical calculations. It is derived from the calculated position of the mean vernal equinox, which ignores the short-period fluctuations of nutation (Earth's axis motion)/) and polar motion. $\text{MST}$ is related to Universal Time ($\text{UT}1$)-/) by a determini…