What version(s) of the timezone files are installed on each? Also, seems one of the Python versions came from Windows, rather than Cygwin?
On Mon, Jun 7, 2021 at 12:01 AM Mike Kaganski via Cygwin <cygwin@cygwin.com> wrote: > Hello, > > Running Cygwin 3.1.7-1 on Windows 10 Version 21H1 (OS Build 19043.985), > I have this issue: > > when I start Cygwin's Python, I have correct time reported: > > > mikek@DESKTOP-8SHAE9Q ~ > > $ python > > Python 3.8.9 (default, Apr 21 2021, 23:14:29) > > [GCC 10.2.0] on cygwin > > Type "help", "copyright", "credits" or "license" for more information. > > >>> import datetime > > >>> datetime.datetime.now() > > datetime.datetime(2021, 6, 7, 9, 40, 15, 318391) > > But running Python for Windows (it doesn't matter which, specifically > for the test I used the one from MS Store [1]), I have incorrect local > time: > > > mikek@DESKTOP-8SHAE9Q ~ > > $ "C:/Program > > > Files/WindowsApps/PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0/python3.8.exe" > > Python 3.8.10 (tags/v3.8.10:3d8993a, May 3 2021, 11:48:03) [MSC > > v.1928 64 bit (AMD64)] on win32 > > Type "help", "copyright", "credits" or "license" for more information. > > >>> import datetime > > >>> datetime.datetime.now() > > datetime.datetime(2021, 6, 7, 7, 40, 55, 503775) > > Note how the latter output reports 2021-06-07 07:40, while the former > reports 2021-06-07 09:40. The difference is 2 hours. > > Starting the same Python for Windows from cmd.exe has it correct: > > > C:\Users\mikek>python > > Python 3.8.10 (tags/v3.8.10:3d8993a, May 3 2021, 11:48:03) [MSC > > v.1928 64 bit (AMD64)] on win32 > > Type "help", "copyright", "credits" or "license" for more information. > > >>> import datetime > > >>> datetime.datetime.now() > > datetime.datetime(2021, 6, 7, 9, 41, 21, 925240) > > Cygwin reports correct timezone: > > > $ echo $TZ > > Europe/Moscow > > Starting Python for Windows using a different timezone (specifically, '$ > TZ=UTC "C:/Program > Files/WindowsApps/PythonSoftwareFoundation.Python.3.8_3.8.2800.0_x64__qbz5n2kfra8p0/python3.8.exe"') > > gives correct time for *that* time zone. > > This is a problem, because in our project (LibreOffice), we use Cygwin > as environment for unit testing, where LibreOffice's own Python (also > built natively for Windows) is used, and at some times (from 00:00 till > 02:00) it reports wrong dates, which makes tests fail locally on > affected systems(see [2]). > > Thank you! > > > [1] https://www.microsoft.com/en-us/p/python-38/9mssztt1n39l > > [2] > > https://gerrit.libreoffice.org/c/core/+/92217/2#message-f55091795e7cde9d75adc00ddb69451121b644f6 > > > -- > > Best regards, > > Mike Kaganski > > > -- > Problem reports: https://cygwin.com/problems.html > FAQ: https://cygwin.com/faq/ > Documentation: https://cygwin.com/docs.html > Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple > -- Russell M. Van Tassell <russel...@gmail.com> -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
