This is the great thing about PSA. The schedule flexibility truly is the best in the industry. With the Schedule Adjustment Period, you can fly 65 hours a month if you want, or 98 hours. If you only want 4 day trips, no problem. If you prefer to not work weekends and want all holidays off, you can do that.
As a first year FO, once you hold a line, you can have any day off that you want and fly as much or as little as you want. Personally, I had over a week off for both Thanksgiving and Christmas, as a first year FO, and still credited 90 hours a month.
People say that PSA has a bad contract, but they do not know about the good parts.