The USPS used it when I worked there in the 90s. They used 24 hour days with 100 ticks of 36 seconds per each hour. The time clocks operated in this format.

Which was interesting, until you also realized, they expected you to clock in precisely at the start of your shift, giving you a 36 second window to do it in.

On the first day I was wondering why there were so many time clocks for the size of the office and then I witnessed the shift change "stampede" that this policy incidentally created.