To get the system time zone's name:
when.timezone()
To get the current date:
when.today()
To get tomorrow's date:
when.tomorrow()
To get yesterday's date:
when.yesterday()
To get a datetime one year from now:
when.future(years=1)
To convert to a different time zone:
when.shift(value, from_tz='America/New_York', to_tz='UTC')
To get the current time:
when.now()
Full documentation can be found on Read the Docs.
Installing When is easy:
pip install whenpy
or download the source and run:
python setup.py install