A polar view of the planet is roughly circular, that is, a total 360 degrees. There are about 24 hours in each day. Divide 360 by 24; the answer is 15, so there are 15 degrees of longitude in each time zone.
The Earth rotates at the rate of roughly 15 degrees of longitude per hour.
Time zones are ideally 15 degrees in width, so that 24 will cover the entire 360 degrees (180 east and 180 west)
There are 24 time zones. Divide 360 degrees longitude by 24 and you get 15 degrees for each one-hour time zone.
If it's noon solar time at 90 degrees W longitude, every 15 degrees of longitude represents a one-hour time difference. So, at 72 degrees W longitude, the solar time would be 2 hours behind (2:00 PM).
If a day had 36 hours instead of 24, each time zone would cover 30 degrees of longitude instead of the current 15 degrees. This is because the Earth rotates 360 degrees in 24 hours, so with 36 hours in a day, each hour of difference would correspond to 30 degrees of longitude.
One hour equals 15 degrees.
1 revolution / 24 hours = 360 degrees / 24 hours = 15 degrees per hour
There are 15 degrees of longitude in each standard time zone
24 hours
The Earth rotates at the rate of roughly 15 degrees of longitude per hour.
Time zones are ideally 15 degrees in width, so that 24 will cover the entire 360 degrees (180 east and 180 west)
There are 24 time zones. Divide 360 degrees longitude by 24 and you get 15 degrees for each one-hour time zone.
15
If it's noon solar time at 90 degrees W longitude, every 15 degrees of longitude represents a one-hour time difference. So, at 72 degrees W longitude, the solar time would be 2 hours behind (2:00 PM).
If a day had 36 hours instead of 24, each time zone would cover 30 degrees of longitude instead of the current 15 degrees. This is because the Earth rotates 360 degrees in 24 hours, so with 36 hours in a day, each hour of difference would correspond to 30 degrees of longitude.
You would need to travel 15 degrees of longitude to pass through one time zone because the Earth is divided into 24 time zones, each covering 15 degrees of longitude.
360 degrees / 24 timezones = 15 degrees per timezone