At the latitude of Adak, 1° longitude = 68.59 km (42.62 miles) At the latitude of Barrow, 1° longitude = 35.64 km (22.15 miles) Difference = 32.95 km (20.47 miles) longer at Adak
zero
there is no time difference between any two locations separated by x-amount of latitude as long as they are on the same longitude. When they are on different longitudes and separated by latitude count the number of longitudes between the locations to get the time difference
The time difference per degree is 4 minutes. (1440 minutes divided by 360). There are 15 degrees of longitude for each hourly time zone, yielding 24 zones times 15 degrees, which also equals 360.
There are 15 degrees of longitude between every two minutes of longitude. Each degree of longitude is divided into 60 minutes.
4 minute
0 degrees longitude
At the latitude of Adak, 1° longitude = 68.59 km (42.62 miles) At the latitude of Barrow, 1° longitude = 35.64 km (22.15 miles) Difference = 32.95 km (20.47 miles) longer at Adak
zero
there is no time difference between any two locations separated by x-amount of latitude as long as they are on the same longitude. When they are on different longitudes and separated by latitude count the number of longitudes between the locations to get the time difference
111km
Degrees of longitude are uniform in length. 1 degree (Longitude) = 69.69 miles*Cos(Ө)(latitude) however the length of a degree of latitude depends on were you are on the planet. A degree of latitude at the equator is notable longer than, for example, a degree of latitude at the latitude of Toronto, Canada.
The time difference per degree is 4 minutes. (1440 minutes divided by 360). There are 15 degrees of longitude for each hourly time zone, yielding 24 zones times 15 degrees, which also equals 360.
There are 15 degrees of longitude between every two minutes of longitude. Each degree of longitude is divided into 60 minutes.
"Lines of longitude" are conceptual, not physical; there can be as many as we want. For example, there are 3600 "seconds of longitude" between each degree of longitude. That's 60 minutes of arc per degree, and 60 seconds of arc per minute.
where is 120 degree longitude
You can calculate the time difference between two locations by dividing the difference in longitude by 15 degrees, as each 15-degree interval represents a one-hour time difference. East is positive and west is negative when determining the direction of the time change.