Your supervisor is prepared to adjust your work schedule during exam weeks. As with any other schedule modification, you MUST make arrangements with your supervisor in advance. If you must make a call, get your supervisor's permission and make it brief. Your supervisor will make you aware of such violations at the start of your employment. You can expect to be given a warning for other violations.
Some departments use time sheets while others use time clocks.
The Library uses time sheets. Your supervisor will fill out your time sheet for you. It is imperative that you sign your time sheet by Wednesday of the pay period. Students occasionally forget to either sign in or out for a shift. If you have forgotten, contact your supervisor as soon as possible.