Under the law, your employer must pay you for all time worked. If you are required to work from the time you punch in (9:02 in your example), then you are entitled to be paid from that time until you cease working. Essentially the same is true of your time records. If you make a mistake in recording your time, then realize your time card is incorrect and correct it, you must be paid for the time you work. In addition, since both the U.S. Dept. of Labor and state departments of labor conduct audits of employer records to confirm they are following the law, it is important for your employer to allow you to correct the time cards to assure they are accurate and complete. After all, the time cards are your employer's records and the law requires them to be accurate.