Under California law, timecards must show:
Timecards do not need to show rest periods, nor is there any legal requirement that employees sign their timecards. But it is recommended that employees check the accuracy of hours, including meal and rest breaks, that were taken.
If an employee reports hours on a timecard that they did not work, the employer may make corrections to the timecard and pay only for hours actually worked.
If challenged, the burden of proving what hours were in fact worked lies with the employer.
Read more about Timekeeping and Recording Guidelines in the HR Library.