Ann Kiernan replies:
No! Federal labor law allows an employer to round employee time to the nearest quarter hour. Employee time from 1 to 7 minutes may be rounded down, and thus not counted as hours worked, but employee time from 8 to 14 minutes must be rounded up and counted as a quarter hour of work time.
So, you should not be docked for being 5 minutes late, but can be docked for 15 minutes if you are more than 7 minutes late.
Information here is correct at the time it is posted. Case decisions cited here may be reversed. Please do not rely on this information without consulting an attorney first.