Originally Posted by
corporate-wage-slave
It's probably easier to identify the quieter periods, which would be Saturdays (except mornings during half term / ski weekends); Sunday mornings, Monday-Thursday afternoon, any day after about 19:00 hrs. All bets off if there is poor weather. November and the month before Easter are also very quiet.
According to the lounge crowd tracker, Mon-Thurs afternoons have been rammed the last couple of weeks.