The onscreen action (or non-action) is synced up to the actual time, so if you see a shot onscreen of a clock tower showing 4:45 p.m., you know it's 4:45 p.m. in Minneapolis.

The iconic video art ... clip after clip, for 24 hours. “The Clock” is currently on at MoMA through Feb. 17. But with admission generally limited to normal museum hours, more than half of the ...

In others, time is of the essence: In a clip from Alfred Hitchcock’s The 39 Steps, the hero must stop a bomb planted inside Big Ben from detonating by climbing out onto the clock face and ...