time difference between utc and python datetime() time

Question

with python's datetime package, I'm seeing a ~8min time difference between datetime.now().timestamp() and datetime(year, month, day, hour, minute, second, [tz]).timestamp(), when I put now's time in the latter formula. With or without the tz, which is timezone, the 8min difference stays there. Anyone can explain where it went wrong? Thanks!

Please post a Minimal, complete, verifiable example, just a few lines to illustrate your problem. — Prune
– Prune, Commented Nov 21, 2017 at 1:34
let's say now is nov 20, 17:44, pacific time. with datetime.now().timestamp(), I got a number 1511228640. This is equal to the actual utc time. But when I used datetime(2017, 11, 20, 17, 44, 0, 0, [pacific_time]), I got 1511228220, which 420 seconds, i.e. 7 minutes different from the actual utc. And the pacific_time tz variable's existence doesn't make a difference. — Alison Z
– Alison Z, Commented Nov 21, 2017 at 1:48
I'll check back in the morning to see whether you've posted (not commented) a MCVE (not narration). — Prune
– Prune, Commented Nov 21, 2017 at 1:55

georgechen · Accepted Answer · 2017-11-21 18:09:04Z

1

You can (and should) use tzinfo.localize() instead.

https://stackoverflow.com/a/6411149/1114412

answered Nov 21, 2017 at 18:09

georgechen

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