two and a half seconds
9,000 seconds.
8580 seconds
There are 2*60*60 = 7200 seconds
Two and half days = 60 hours
two and a half seconds
150 minutes. 9000 seconds.
259200 seconds
150 seconds.
two hours
A half hour is 30 min so there is two half hours in an hour
9,000 seconds.
There are 5 half hours in 2.5 hours
Two hours.
Two half-hours.
8580 seconds
There are 2*60*60 = 7200 seconds