epoch (Q507810)
reference point from which time is measured
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other details
aliases calendar epoch
 reference epoch
 reference time
description reference point from which time is measured

External Links
(P646) /m/0b8fb
(P1245) 468425
(P1417) science/epoch-time-measurement
(P4613) 17949
(P6385) istoriya/EPOHA.html
(P8814) 15273375-n