30 minutes.
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One half of an hour.
30 minutes, if I'm right, I'm thinking there's 60 minutes in 1 hour=1 & half; .5 is half of one hour in this situation.
The term is actually "half an hour" which is short for "half of an hour". This has same meaning as "half hour" or a rough approximation of 30 minutes.
There are 5400 seconds in an hour and a half.
half (1 hour) = 30 minutesIt is 0.5 hours.