Make the work schedule different during different periods of the year
Due to daylight I would like to make my availability different in different periods of the year and set this up well in advance so that it's not overlooked or side stepped by students booking a long way in advance, i.e.
from November 10:00-16:00
from 20th Feb 09:00-17:00
from 27th Mar 09:00-19:00
from 24th Apr 08:00-20:00
There is too much fiddling with time on/off to achieve this at the moment