(1) Hours of operation change twice yearly due to daylight savings time. The change in time will occur at 2:00 a.m., therefore:

(a) in the fall the establishment must close at 2:00 a.m. and then set the clock back to 1:00 a.m.; and

(b) in the spring the establishment must close at 2:00 a.m. and then set the clock forward to 3:00 a.m.