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According to the SI system, the main time unit is 1 second (1 sec), then minutes, then hours.

60 seconds equals 1 minute

60 minutes equals 1 hour

24 hours equals 1 full day

Clocks/watches, stopwatches and stop clocks are used for measuring time.

Other time units are: nanosecond, microsecond, millisecond.

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9y ago

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