Yes, people make up silly things for silly reasons all the time.

All core systems should run on 64bit UTC posix Epoch date-time stamps, and abstract that into whatever ISO 8601 format local communities think is effective policy. If finer granularity is required to recreate events in non-real-time analysis, than additional sampling interval data with event ordering indexes become relevant.

The Metrology around how a Second was (re)defined is actually really interesting. Considering it started as an arbitrary interval originally derived from some dudes heartbeat. =3

https://www.nist.gov/atomic-clocks/how-atomic-clocks-work/cl...