...... I should add that they also put their clocks back and forth as we do for daylight savings. It can fall on the same weekend or a week's difference - I don't know about this year, hopefully someone else will but I'll see if I can find out.
(For most PSs, you don't need to call exactly 60 or 120 days out, ( the only exception is Cindy's at 60 days out which needs to be called in on the dot), and so any time of day will be fine. I try to call when they are least busy so I'm not hanging on for ages).