Get Epoch timestamp accurate by the day with datetime

Question

I want to get a day-accurate (not hour, minutes, seconds) Epoch timestamp that remains the same throughout the day.

This is accurate by the millisecond (and therefore too accurate):

from datetime import date, datetime
timestamp = datetime.today().strftime("%s")

Is there any simple way to make it less precise?

Answer 1

It depends what do you want.

If you just want a quick way, either use time.time_ns() or time.time(). Epoch time is used by system (on many OS), and so there is no conversion. The _ns() version avoid floating point maths, so faster.

If you want to store it in more efficient way, you can just do a: (int(time.time()) % (24*60*60) so you get the epoch at start of the day. Epoch contrary most of other times (and GPS time) has all days long 246060 seconds (so discarding leap seconds).