Home on Rotation
Set your rotation once and see three years of holidays — which ones you're on duty for, and the closest days off on either side of each.
One character per day, repeating. 1 and 0 work too.
Every day of the first year, filled in. Holidays are outlined.
It skips recovery days. Coming off a 24 at 0700 doesn't make that day usable. Anyone who's tried to do Christmas morning on ninety minutes of sleep knows the difference. Days straight off a long shift are marked but never offered as an alternate date.
It offers both directions. Some families celebrate before the shift, rested. Some celebrate after. Neither is the right answer, so both dates are shown and you pick.