Federal employees paid through the Defense Finance and Accounting Service are paid bi-monthly, with pay dates around the 15th and the 30th. U.S. employees paid through the General Services Administration receive a paycheck bi-weekly, with the pay period ending on Saturdays.
Federal government pay periods vary by governmental department. Employees of the U.S. Department of Defense, including all active duty military personnel are paid bi-monthly. Their checks are issued around the middle and end of each month, and their payday always falls on a weekday.
Many other government employees are paid by the General Services Administration. Their pay periods last two weeks, and run from Sunday to Saturday. Employees enrolled in direct deposit receive their paychecks the Friday after the pay period has ended, and hard checks are issued the following Wednesday.