UW paydays occur twice a month, on the 10th and the 25th. The first payday reflects work done in the second half of the previous month. The second payday reflects work done in the first half of the current month.
If either of those dates falls on a Saturday, then payday is the day before (Friday).
If either date falls on a Sunday, then payday is the day after (Monday).
The UW will be switching to a biweekly pay schedule effective January 1, 2016.