In a city that moves at speed, the clock is king. Or something like that.
London is a place of many fine public timepieces. From church spires and railway stations to shiny corporate developments, a big, bright clock face is never far away.
This selection of images shows off some of London's finest clocks, although not its most famous: Big Ben. In the classic corner, there are some cracking clocks, including a chunky four-way in Waterloo station, a graffiti-covered turret in Brixton and the grand clock on the side of the old Telegraph building on Fleet Street.
Of contemporary examples, the Canary Wharf clocks stand shoulders above the rest. This imposing sculpture, by German designer Konstantin Grcic, is an iconic part of the business district.