Question

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.

Answer 1

import time
time.time() * 1000

where 1000 is milliseconds per second. If all you want is hundredths of a second since the epoch, multiply by 100.