No.
You do not hyphenate 30 minutes, as in "She took thirty minutes to finish her test."You do, however, hyphenate 30-minute as in, "She took the thirty-minute exam."The distinction is that in this latter case 'thirty-minute' is used as a compound adjective (describing the timed exam) whereas in the first example 'thirty' is an adjective describing 'minutes'.An easier way to remember it is that you only hyphenate when the adjectives are acting together for a single purpose (such as modifying a single word together).
No - "Each half is 60 minutes." However, you would hyphenate in a sentence such as, "The game consists of 60-minute halves."
83 minutes
7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.7 minutes and 30 seconds.
it is an hour
30 minutes for everyday,for one year is 10,950 .
30 minutes
9 HOURS AND 30 MINUTES 9 HOURS AND 30 MINUTES
If you mean 90 minutes then it is 1 hour and 30 minutes or 1.5 hours
about 30 to 40 minutes, not that long.
30 minutes.
1 30