This number is interpreted as the number of seconds since 00:00:00 UTC on 1 January 1970 (the epoch).
Kulezi zinhlelo, isikhathi sokubala sisuselwa kumasekhondi adlulile kusukela ngoJanuwari 1, 1970 ngo-00: 00: 00 UTC (ebizwa nangokuthi i-Epoch).