UNIX timestamps were the biggest innovation in timekeeping since the 1st of January, 1970
@retr0id Until the 30th of June 1972, when they decided to use the same timestamp for a leap-second and the second before, yielding negative time progress when using sub-second precision.
(Edit: I am not sure when they decided/changed this. I am just referring to the first date that has a leap second.)
@retr0id Somehow I feel the need to RIP SunOS and AIX (wait! It Lives!!).
(Back in the day I was writing for a small company named DSET that wrote software for phone switches/networks and that always included OS compatibility. Linux was a baby then. Sigh.)