If I recall correctly, for up to 5 "ticks" you could make it up at the end of your shift, for anything more you got reported. It was a union job and so there

If I recall correctly, for up to 5 "ticks" you could make it up at the end of your shift, for anything more you got reported. It was a union job and so there were a lot of little "parsimonious" rules like this. To answer the other question at the same time, in the 90s, was most shops that used an analog time clock would only advance the stamped time every 5 minutes. So, if you clocked in at 8:04, it would still punch 8:00 on your card. So, it was notable to me at the time that they had clocks with a finer grain of accuracy that fed into their computers immediately, and they actually cared about the "slop" involved in time keeping.