Brewer's: Seven Dials
(London). A column with seven dials formerly stood in St. Giles, facing the seven streets which radiated therefrom.
Where famed St Giles's ancient limits spread An in-railed column rears its lofty head. Here to seven streets seven dials count the day. And from each other catch the circling ray.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894