Time-lapse is a method of capturing still images of a series of events over a long period – then playing it back much quicker.
When played at normal speed, time appears to be moving faster and thus lapsing. For example, an image of a scene may be captured once every second, then played back at 30 frames per second. The result is an apparent 30-times speed increase. – wikipedia
It’s perfect for showing long processes such as construction and manufacturing, or in this instance, a sunset over Johanna Beach while I was on holiday in the state of Victoria in Australia.
For the technically curious; this time-lapse was the result of over 500 images, taken at 8 second intervals, then played back at 24 frames per second.