Please add comments for strings with variable names
Do I need to translate this kind "%(time_from)" string? Or if they have been translated, do they cause any faulty situation in the application.
At every minute between %(time_from)s and %(time_to)s
On every day at %(time)s
On day %(monthday)s of every month at every full hour
On day %(monthday)s of every month at every minute between %(time_from)s and %(time_to)s