Four minutes and thirty seconds is about the length of a song and close to a full French press brew, which is why it turns up so often as a self-contained block — pace a task to one track, time a coffee, or hold a focused stint. Written as 4:30, it is one of the most-searched “odd” durations.
Want a longer piece? Three rounds of 4:30 is thirteen and a half minutes. In the editor, set how many rounds to play and it holds the same stretch each time.
A 3 minute 30 second timer — 3:30, about right for steeping black tea or the length of a song. Repeats as many times as you set.
An 18 minute timer — the length of a TED talk, and a tidy focus sprint. Repeats as many times as you set.