What geographical feature usually distinguishes time zones?

Answer 1

There are 24 standard time zones for the Earth, although they are adjusted for local and national boundaries and include some regions using half-hour increments. The time zones have a width of 15° of longitude. They are centered on the lines that are multiples of 15° and extend 7.5° to either side.

For example :

• The GMT +0 or Greenwich Time Zone extends from 7.5° W to 7.5° E longitude.
• The GMT -5 time zone (US Eastern Standard Time) is centered on 75° W longitude and ideally extends from 67.5° to 82.5° W longitude.

Answer 2

Time zones are usually distinguished by lines of longitude, with each zone covering a specific range of longitudes. This is because the Earth rotates 360 degrees in 24 hours, resulting in each time zone covering roughly 15 degrees of longitude.

Answer 3

The geographical feature that usually distinguishes time zones is 15 degrees of longitude.