The Significance of UTC Time
Many things that happen in the world are calculated according to time. The time is determined by a 24-hour clock. Before 1972, the time standard was known as Greenwich Mean Time (GMT), but now it is called Universal Time Coordinated, or, UTC time. It is also called Zulu time at the 0-degree meridian. It is these meridians that determine where the lines for the time zones are drawn.
To determine the time in a certain time zone, knowing the UTC formula is necessary. So, UTC 4 countries will add four hours to GMT time, which is England time. Whether or not it is Daylight Saving Time does not matter.
UTC Time is a Standard
It is important to note that UTC time is a standard and not an actual time zone. That is what specific +4 or -4 will represent besides the UTC every time. The world has a time zone for every hour of the day, for a total of 24 time zones. There are some discrepancies across time zones, because a border crossing, for example, may occur on a meridian line where the time changes. Once you cross the border, the time zone will change.
An example of this is at the border crossing between New Brunswick, Canada, and Maine, United States. When you cross this border, your time zone moves ahead by one hour. So, discrepancies with time zones will occur because the regions can not always stick to the meridian lines to the exact letter due to geographic issues such as this.
UTC +4 Countries
UTC +4 countries are countries that have UTC time plus four hours. So that would be England time, plus four hours ahead. The following are UTC 4 countries:
- France (Reunion)
- Georgia (partial)
- Russia (partial)
- United Arab Emirates
How UTC is Calculated
The UTC lines in the world are calculated with plus and minus signs. There are twelve time zones in the western portion of the world, and twelve in the east. Some countries adjust their time zones for ease of functionality in their business day. Kiribati, for example, had multiple time zones but switched to one so that the entire country would have the same day, on the same day.
Their time zone went from UTC-10 to UTC+14. Not too many countries or areas make these changes because the time zones are there for a reason. Aviation plans and weather forecasts all depend on the UTC universal standard.