An employer expects employees to be at work on time. If you are scheduled to start at 8:00 am, you should be at your position at that time or preferably a few minutes before.
Many employees take the liberty of hanging around the coffee pot and catching up on the previous night’s happenings. Only do so if it is before your start time. Once you are on the schedule, it is the employer’s time, not your time.
Management does take punctuality into consideration when making a decision for a promotion.
Recent college graduates need to take note of this if they want to advance in their careers.