You must have “setting and permission” rights to set/edit timesheet lock. If so, click your Profile button on the right upper corner and select Settings -> click Lock timesheet button and set the period of time.
You can choose the frequency of timesheet lock: every half the month or every month with 0-14 days delay.
After the timesheet lock your employees will not be able to add/edit their timesheets.
Last Update: September 3, 2020