The longer you stay subscribed the longer you will be able to pause. You may find out the number of days by going to:

Profile > Subscription Details > Manage

The minimum number of days for Pause is 7 days.

Your pause quota will be calculated separately for each of your subscriptions — if you’re subscribed to multiple product lines, pausing one subscription won’t affect the others.

Backdating is unavailable for unused days outside of your selected pause period.