The turn of the decade and I recorded it (I think this is WDRC). Notable mostly as the base year for Unix's time 32 bit time accounting,
this is actually 5 hours later than '0', due to it being in Eastern Standard Time.
date -r 18000
Thu Jan 1 00:00:00 EST 1970
However, it's pretty close! If you happen to be alive on Mon Jan 18 22:14:08 EST 2038, really old machines will think it's December 31, 1901 UTC .