Well, there are 60 minutes with 60 seconds each. 60 times 60 equals 3,600. So, there are 3,600 seconds in one hour.
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1 hour has 3,600 seconds.
1 hour = 60 minutes 1 minute = 60 seconds 1 hour = 60 x 60 seconds = 3600 seconds
There are 5,400 seconds in an hour and a half.
1/3 of an hour is 1,200 seconds.
1/4 hour is 900 seconds.