Use two clocks for two different questions | OriginChainDB

Description:
A mock wall clock moves from 10:00:05 to 10:00:03, giving -2 seconds by subtraction. A separate monotonic counter moves from 100.0 to 100.4, giving a 0.4-second duration.

Keep calendar timestamps for when an event happened and use a duration clock for how long work took. These are different fields with different jobs.

An original illustrated concept lesson from OriginChainDB Console Academy; no live product result is claimed.

Reference: Python time: monotonic clocks
https://docs.python.org/3/library/time.html#time.monotonic

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