They should, yes. The way I understand it is like this: If you work all of your normal scheduled days (like M-T-W-T-F) you get 1x pay for those. The 1st day that you work that is normally your day off (I'm guessing Sunday Feb 14th you worked?) is 1.5x pay. The 2nd day off that you actually worked is considered 2x pay. Also, if you are a 5-8 worker, you get overtime for any hours worked over 8 each day and 2x pay for anything over 12 in a day. For 4-10 workers, you get 1.5x pay for anything over 10 and 2x for over 12 hours. That's why I volunteered to work last Sunday the 14th and today...6 hours of doubletime for me today.

Yes, and? You can get OT for working on a Sunday, provided you work your normally scheduled days the rest of the week.

How often do you guys work Sundays? Is it every week? What volume gets delivered, left over late stuff or do you have actual commit dates on Sunday?

For a M-F employee, Sunday would be time and a half (first scheduled day off of the week), if they worked the following Saturday, that would be double time (second scheduled day off). A vacation day or floating holiday during the week would not affect this, a personal day would.

True, but as sad as mgt is, they do a pretty good job of making sure you wouldn't be working that Saturday...

1 Sunday a year which is mothers day, unless like this Saturday Valentine's day is a Sunday. No commit times and only a handful of employees

What about a PT loader punching 5 days and then a 6th punch on Saturday for airs? Do those 6th punches become 1.5?