Today I learnt UNIX timestamp is not unique

I’ve always thought of a UNIX timestamp as a clock that gives 1 tick per second (or 1 billion ticks if you want nanosecond precision). So each second has 1 timestamp, like a primary key in a database, whereas human time is how we name each tick in a more human-friendly way, like 20 Oct 2026 10:15:10 AM. Recently, following the news of the leap... Weiterlesen: Today I learnt UNIX timestamp is not unique