Timepieces: Include sand- or water-clocks, Big Ben and wrist watches, and why not? Sundials too: as long as they can tell time or time intervals, and they are the focus of the photo.
(And talking of Big Ben: Big Ben is the name of the clock, not of the tower, so pictures of the tower will be removed if the clock and the time it shows is not visible)
Vote for those you like, as many as they are – just vote, please
#If your entry doesn’t belong to the group it will be removed and you will forfeit your win.