90 seconds
9,000 seconds.
There are: 90*60 = 5,400 seconds
two and a half seconds
3.5 minutes is 210 seconds.
One week = 1,209,600 half-seconds.
60 seconds an 1 minute 60 minutes in 1 hour 30 minutes in half an hour 90 minutes in one and a half hours. So 90 minutes * 60 seconds = 5400 seconds
There are 5400 seconds in an hour and a half.
30 seconds in half a minute (there are 60 seconds in a minute)
30 seconds
In 1.5 minutes: 90 seconds In 1.5 hours: 5,400 seconds In 1.5 days: 129,600 seconds In 1.5 years: 47,335,389 seconds.
150 seconds
12,600 seconds.
150 seconds.
150 seconds
Half an hour is 1800 seconds. 3 half hours are 5,400 seconds.
One day is equal to 60 x 60 x 24 = 86400 seconds. Therefore, two and a half days is equal to 2.5 x 86400 = 216000 seconds.