[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Adam Williamson added the comment: Yeah, I've added a comment there. I agree we can keep subsequent discussion in that issue. Closing this as a dupe. I actually have the same thought as you, but I suspect making something that "worked" before start throwing an error

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Paul Ganssle added the comment: I suspect discussion should be centralized in issue 12750, but if it were up to me %s would either work as expected or throw an error. Silently giving the wrong answer is a terrible compromise. --

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Adam Williamson added the comment: I'd suggest that if that is the case, it would be better for the docs to *specifically mention* that `%s` is not supported and should not be used, rather than simply not mentioning it. When it's used in real code (note someone in the SO

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Adam Williamson added the comment: Paul: right. This is on Linux - specifically Fedora Linux, but I don't think it matters. glibc strftime and strptime depend on an underlying struct called 'tm'. 'man strftime' says: %s The number of seconds since the Epoch,

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Paul Ganssle added the comment: It seems that %s is not supported and the fact that it works at all is incidental. See issue 12750 and this SO thread: https://stackoverflow.com/questions/11743019/convert-python-datetime-to-epoch-with-strftime --

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

Paul Ganssle added the comment: adamwill: I think datetime's strftime is a wrapper around the system strftime, so it varies between platforms. Might be useful to specify which platform you are seeing this behavior on. -- nosy: +p-ganssle

[issue32988] datetime.datetime.strftime('%s') always uses local timezone, even with aware datetimes

New submission from Adam Williamson : Test script: import pytz import datetime utc = pytz.timezone('UTC') print(datetime.datetime(2017, 1, 1, tzinfo=utc).strftime('%s')) Try running it with various system timezones: [adamw@xps13k pagure (more-timezone-fun %)]$ TZ='UTC'