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I need a single timestamp of milliseconds (ms) since epoch. This should not be hard, I am sure I am just missing some method of datetime or something similar.
Actually microsecond (µs) granularity is fine too. I just need sub 1/10th second timing.
Example. I have an event that happens every 750 ms, lets say it checks to see if a light is on or off. I need to record each check and result and review it later so my log needs to look like this:
...00250 Light is on
...01000 Light is off
...01750 Light is on
...02500 Light is on
If I only have full second granularity my log would look like this:
...00 Light is on
...01 Light is off
...01 Light is on
...02 Light is on
Not accurate enough.