The correct answer is option C.
Time zones are measured in relation to their distance from coordinated universal time.
What are time zones?
- A time zone is a region that adheres to a common standard time for social, commercial, and legal activities.
- Because it is easy for locations in frequent communication to preserve the same time, time zones typically follow the boundaries between countries and their subdivisions rather than rigidly following longitude.
- From Coordinated Universal Time (UTC), which ranges from UTC12:00 to UTC+14:00, all time zones are defined as offsets.
- The offsets are often a whole number of hours, although some zones—like those in India, South Australia, and Nepal—are offset by an additional 30 or 45 minutes.
Higher latitude regions occasionally observe daylight saving time, which often involves advancing local time by an hour in the spring and summer.
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