Passes every minute, 60 minutes in an hour, 24 hours in a day so,
60x24 = 1440
It passes the twelve 1440 times in 24 hours.
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The second hand on the clock circles 420 times in 7 hours.
its least count will be one second
one second
It takes the minute hand one hour to do this, and it takes the hour hand twelve hours to do it.
The hour hand takes twelve hours for a complete circle, 360 degrees. Twelve hours is 12x60 minutes = 720 minutes. If 360 degrees takes 720 minutes, 1 degree takes 720 divided by 360. 720/360 = 2 minutes.