If the Client you work for has their own timesheets, you probably don't need to fill in OTC's. Otherwise, here are some Excel timesheets for you to download. You can either update and print one from your local machine electronically for your line manager to sign, or print off a blank one and fill it in.

Are you paid hourly?
Weekly Timesheet Monthly Timesheet

Are you paid daily?

Weekly Timesheet Monthly Timesheet