:bug: Fix for issue #17 | Windows timeformat error

[janella]

%F and %T both cause errors on Windows.

Fix: Expand the format string.

Ref:

• strftime format string %F %T consistency problem (https://bugs.python.org/issue15065)
• http://stackoverflow.com/questions/10807164/python-time-formatting-different-in-windows

Fixes #17

[pas256]

Thank you @jespinas