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Mathematics
Clocks and elapsed time — How does an hour pass?
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Drag the minute hand to see the hour hand move and read elapsed time across hour marks on a timeline.
0 minutes
No minutes have passed yet.
Drag the blue minute-hand handle past 12, then to 3.
━ Minute hand · long
━ Hour hand · short
Digital time uses 24-hour notation
Model notes
- Both hands represent the same time. The clock face repeats every 12 hours; digital time uses 24-hour notation.
- Each exploration covers up to 120 minutes within the same day, ending at 23:59. Dragging backwards revisits the selected interval.
- Both hands move continuously while dragging; releasing snaps to the nearest minute. The clock does not run with device time or model a second hand.