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SW-User
I'm trying to remember. By process of eliminatation it must be 1972. As that was first leap year in the 70s and UTC was introduced then.
Hanging2 · 51-55, M
@SW-User Actually the First leap year was 44 BC.
SW-User
@Hanging2 I said in the 70s UTC was introduced so as well as a leap year there were I think 2 seconds added too to correctly realign UTC with the astronomical clock.
I should have thought about other calendar realignments but in the 19th century the realignments generally took days away didn't add them
I should have thought about other calendar realignments but in the 19th century the realignments generally took days away didn't add them