Time

It is 14 milliseconds.

It is 2 + 24*k hours where k is an integer.

Yes it is.

There are not.

1 nano second = 10^-9 second → 1 s = 10^9 ns.

There are 3600 seconds in 1 hour → 1 hour = 3600 s = 3600 × 10^9 ns = 3.6 × 10^12 ns.

It is: 1/3 of 60 = 20 minutes

9 hours 45 minutes

There are 86400 seconds.

267 = 60 + 60 + 60 + 60 + 27

so 4 hours 27 minutes

There are: 425*60 = 25,500 seconds

720 seconds is 12 minutes.

There are 11 hours between 6 am and 5:30 pm.

5:45am to 7:30pm is 13 hours and 45 minutes.

6am to 5pm is 11 hours.

There are 12 hours between 12 pm and 12 am. The PM period lasts the same as the AM period, 12 hours.

21 + 24 + 24 + 22 = 91

It is 0330 hours.

As pm is noon - there are eight hours and eighteen minutes - assuming it is from noon to 8.18pm in the evening.

If it is from noon to 8.18 am the following day, and using the 24 hour clock, then it would be twenty hours and eighteen minutes.

Note: It is not precise enough in the question.

There are 8 hours and 30 minutes (or 8.5 hours) from 11.30 to 20:00.

4.25 hours is 4 hours and 15 minutes.

It is 12:12 pm.

3 hours and 20 minutes.

It is five and a half hours, or 5 hours and 30 minutes.

60 seconds in a minute, 60 minutes in an hour, so 3600 seconds in an hour. 4000 seconds is about an hour and 7 minutes.

It's 120 hours between 6pm Thursday until the following Tuesday at 6pm

From 4:45 to 5:00 is 0:15

from 5:00 to 12:00 is 7:00

and 1 hour to 1pm

so 0:15 + 7 + 1 = 8:15

Answer: 8 hours 15 minutes