The Centenary clock has one large dial in the centre, measure 1.5 metres (4 ft 11 in) in diameter. This dial shows the exact time (UTC+1; during daylight saving time UTC+2 is used instead). The twelve dials around the centre dial show the following (starting from the dial in the 2 o'clock position and going clockwise): the equation of time, the zodiac, the solar cycle and the dominical letter, the week, the globe, the months, the calendar dates, the seasons, the tides, the age of the moon, the phases of the moon and the metonic cycle and the epact.