UT2 time zone is Universal Time with polar motion and seasonal 'slurring' of the Earth's rotation taken into account
Similar to UT2
EST - European Standard TimeET - Eastern Time [UTC - 0500]
ET - Ephemeris Time obsolete
GA - Greenwich Atomic name used in UK for UTC prior to 1964
GBT - Great British Time
GCT - Greenwich Civil Time suggested replacement name, in 1925, for GMT
GeT - Greenwich Electronic Time British name for UTC
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