You're better off asking for prefer of days or even specific times on various days. It specifically says NOT to try to bid trips around the holidays in the PBS gouge. Page 92 if you're interested.

Ask for Prefer Off in order of importance

During Coverage, PBS will attempt to honor Prefer Off dates in order from left to right. Thus, if your most important date is Dec 25, ask for it first and then ask for less important dates. For example: Prefer Off Dec 25, Dec 24, Dec 26, etc. This is applicable to both Pairings and Reserve bid groups.


Warning: Asking for Pairings around the holiday will not work

A common mistake is for pilots to bid for pairings around a holiday with the assumption that if they get one of the specified pairings, it will preclude them from getting a trip that works over the holiday because their line will be complete or because they will be illegal for a holiday pairing.