Timezone works inconsistently under Cygwin and Windows

[wlnirvana]

Environment: Win 7 (64-bit) + Cygwin (64-bit) + Django 1.6.5
Current time in Windows system: 2014-11-17 16:25 HKT

If I create a project and run it under Cygwin, I get the following

$ django-admin.py startproject foobar
$ cd foobar/
$ python manage.py runserver
Validating models...

0 errors found
November 17, 2014 - 08:26:10
Django version 1.6.5, using settings 'foobar.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

Note the time is around 8:30 in the morning!!!

And if I switch to Windows and run the exact same project I just created, I get:

D:\cygwin64\home\Administrator\foobar>python manage.py runserver
Validating models...

0 errors found
November 17, 2014 - 16:29:10
Django version 1.6.5, using settings 'foobar.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.

This time it correctly shows the local time.

EDIT:
Here is an excerpt of settings.py generated by django-admin.py startproject foobar command.

 TIME_ZONE = 'UTC'

 USE_I18N = True

 USE_L10N = True

 USE_TZ = True

[Aymeric Augustin]

What's the value of your TIME_ZONE setting? What's your system time zone?

See also ​https://docs.djangoproject.com/en/1.7/ref/settings/#time-zone and the caveat about Windows.

[wlnirvana]

Replying to aaugustin:

What's the value of your TIME_ZONE setting? What's your system time zone?

See also ​https://docs.djangoproject.com/en/1.7/ref/settings/#time-zone and the caveat about Windows.

See edit above. TIME_ZONE is set to'UTC' automatically by the startproject command. I didn't do any modification to settings.py onces it was generated.

[Aymeric Augustin]

As explained in the documentation, you must set TIME_ZONE to the name of the HKT time zone in the tz database. Windows doesn't support doing things in a time zone that isn't the system time zone.

Cygwin appears not to suffer from this limitation and manages to run your project in UTC as required by your settings file.

[wlnirvana]

Replying to aaugustin:

As explained in the documentation, you must set TIME_ZONE to the name of the HKT time zone in the tz database. Windows doesn't support doing things in a time zone that isn't the system time zone.

Cygwin appears not to suffer from this limitation and manages to run your project in UTC as required by your settings file.

I got it. I mistook the note as you must explicitly set TIME_ZONE in windows. Thanks a lot.