The dial is in the churchyard to the south-east of the church. It is square, and is mounted on a circular bronze plate which sits on the capital of a circular section stone pillar on a two-step plinth. It shows hours IIII - XII - IIII - VIII, read from the inside, with a split noon and divided to 30, 15, 10, 7.5, 5 and single minutes. Half hours are dotted, and single minutes are marked in 10s with Arabic numerals. Noon is marked at eleven cities: Bantam, Surret, Babylon, Jerusalem, Rome, London, Dublin, Barbados, New York, Charles Town, and Mexico.
Mottoes in panels on the circular plate to each side of the dial read: N "Thou by this dial’s shady stealth may’st know time’s thievish progress to eternity"; E "Hours are time’s shafts and one comes winged with death"; S "With warning hand I mark time’s rapid flight. From life’s glad morning to its solemn night but through Almighty love I also show there’s light above me, by the shade below"; W "Watch, for ye know neither the day nor the hour wherein the Son of man cometh".