Time

No. Maryland and Michigan are in the same time zone.

a million or more years

you put the 9minute timer and the 2minute timer on together

when the 2min timer finishes flip it 2min timer to make 4mins.

when the 2min timer is finished start timing the egg and wait for the 9min one to finish

:)

12 Minutes.

12:30

48

Divide the minutes by 60 to convert them into hours

5

694,444

210 mins.

Those who traveled at night were often familiar with the rising and setting times of certain stars and planets. These, unlike the Moon, seem to travel at practically the same speed anytime at night, and their locations changed with the seasons in a regular manner. Of course, the rising or setting Moon would be a good indicator of east and west.

45

Seconds, I have to assume. 26s is 7/15 of a minute or 0.43333 mins.

There is 1 hour and 55 mins in 115 mins.

100 minutes

42 minutes.

4 hours 10 mins

There are 60 minutes in one hour. Therefore, 1.9 hours is equal to 1.9 x 60 = 114 minutes.

1000 metres = 1 kilometre so 250 m = 250/1000 km = 0.25 km

60 minutes in 1 hour, so 60 x 192 minutes in 192 hours. Answer : 11 520 minutes.

10 years = 87,658.1277 hours

It is a division problem. There are 60 minutes in an hour. 900/60 = 15. There are 15 hours in 900 minutes.

The Earth takes about 23 hours 56 minutes 4 seconds to rotate exactly one time.

But in that time, we don't see the sun return exactly to the same place.

The apparent motion of the sun is what's obvious to us, so we design our clocks

to match the sun. We call each complete apparent turn of the sun "a day", and

we mark off 24 equal spaces on our clock, which we call 'hours'.

Note:

If we want to build a telescope that automatically follows the stars across the sky,

then we can't use a normal clock to run the telescope. We have to build a different

clock that turns at the rate of the Earth, and turns the telescope through a complete

rotation in 23hours 56minutes 4seconds.

A previous answer in this space related the length of a day to the need for Leap Year.

Nothing in this discussion has any connection whatsoever with Leap Years.

1 minute is 0.01667 hours.

1753.2 hrs.