How do I stop an event over a period of time and then restart it?

I am at school...

I am really lazy 😉 and I have put my school timetable (so that I don't have to look at my planner every time) onto my iPod touch and Macbook Pro. I want to know how to stop and restart the timetable over the holidays.

week 1

week 2

week 1

week 1

week 2

week 1

week 2

week off for holidays

week 1

week 2

week 1

week 2

e.t.c

is there a way to stop the weeks for the break/holidays so that I don't have to rewrite my entire timetable.

PLEASE HELP... it would be greatly appreciated

(p.s. I apologise if there are any grammar/spelling mistakes, but I am in a hurry 😉 t)