![]() It is the Western part of Mongolia that has the GMT +7 time zone, in Hovd, Zavkhan, Uvs, Bayan-Olgii, and Govi-Altai. Russia is a country with three different time zones, but the GMT +7 time zone regions of Russia include the Siberian Federal District areas that include: The countries that are in the GMT +7 time zone are as follows: Sometimes there are regions that fall within a meridian line but is in a completely different time zone. ![]() Official time zones do not always mirror the meridian lines, but GMT +7 can be geographical. UTC is used frequently, and GMT is used by the United Kingdom, the BBC World Service, Middle East Broadcasting Centre, and the Royal Navy. Outside of the GMT time zone, GMT is a day that once started at noon, but now, starts at midnight like every other time zone. This typically occurs just moments before noon GMT. GMT is calculated at this point of the world due to the Earth’s tilt and how the Sun reaches its highest point in Greenwich. ![]() The terms are often used interchangeably. UTC time is Coordinated Universal Time but can be different from GMT by approximately nine seconds. So, at noon in Greenwich, the time in GMT 7 countries would be 7:00 p.m. Greenwich Mean Time +7 would be the time in Greenwich and London, plus seven hours. It is the name of a time zone, like E.S.T. It doesn’t calculate a specified time but is a standard of measurement like inches or yards. Greenwich Mean Time is calculated by the meridian line in Greenwich, London, and starts at midnight. GMT has actually been replaced by Coordinated Universal Time (UTC), but remains the more commonly known of the two terms. GMT is an acronym for Greenwich Mean Time. Some of those countries have multiple regions and time zones but have areas that include the GMT +7 time zone, like the countries in North America have multiple time zones. At 75 degrees east (or 75° E) longitude, the time would be 75 degrees divided by 15 degrees = 5 hours ahead of UTC, or UTC+5.īelow are all the different local times currently in use worldwide.There are several countries that are GMT 7 countries, or countries in the GMT +7 time zone.At 150 degrees west (or 150° W) longitude, the time should be 150 degrees divided by 15 degrees = 10 hours behind UTC, or UTC-10.You have to divide the longitude, in degrees, by 15 to find the appropriate time zone, in hours. This is also the reference point for Coordinated Universal Time (UTC) with 1 hour per 15 degrees longitude. Defined by UTC OffsetĮvery place on Earth is measured in terms of its distance east or west of the prime meridian (0° longitude) in Greenwich, London, United Kingdom. Some geographically large (wide) countries, like India and China, use only 1 time zone, while it would have been natural to expect several, like in the US or Australia. The actual borders on a time zone map have been drawn to correspond with both internal and international borders, and rarely match up exactly with the 15-degree time zone borders. This can be seen as the white and gray stripes on our Time Zone Map and in the image above. Theoretically, each 1-hour time zone is 15 degrees wide, indicating a 1-hour difference in mean solar time. However, Arizona's local time is always UTC-7, because there's no DST in Arizona, and they remain on standard time all year. The reason it may be confusing is that California's local time during DST is UTC-7, but the standard time in California is UTC-8. For instance, during DST, it is common to say “California and Arizona are now in the same time zone.” However, the correct thing to say would be: “California and Arizona now have the same local time.” The term time zone is often confused with local time. The words “daylight” or “summer” are then usually included in the name, and the local time is usually set forward 1 hour.įor example, California uses Pacific Daylight Time (PDT) during the DST period with a UTC offset of UTC-7, but Pacific Standard Time (PST) with an offset of UTC-8 during the rest of the year. Daylight Saving Time Zonesĭuring Daylight Saving Time (DST) the time zone name and time changes. ![]() Also, several time zones are only 30 or 45 minutes apart, increasing the total number of standard time zones even further. However, the International Date Line (IDL) creates 3 more. If each time zone were 1 hour apart, there would be 24 in the world. Our Time Zone Map shows all current time zones.
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