The UK sets the standard for Greenwich Mean Time at “ GMT 0” and other countries can calculate their time zone in accordance with how many hours they are ahead of or behind the UK.

There are 24 different time zones on earth to correlate with the 24 hours in each day and which are displayed in our time zone map here at World Clock. Time zones are regions of the earth divided by lines of longitude. However, there is no actual time difference between GMT and UTC and therefore the two can be used interchangeably. There are two standards by which a country’s time zone is categorized the older of the two standards is Greenwich Mean Time (GMT) and the more modern of the two standards is Coordinated Universal Time ( UTC). Whether you’re looking to book a flight, schedule an international teleconference, use our time zone converter or our time zone map and observe the trading hours of an overseas business, can show you the time in a matter of seconds. With incomparable time-telling precision, World Clock is the perfect point of reference for travelers and business people alike. Time zones are essential for managing activities and events on a global provides accurate world time, statistics and weather in major cities across the world. Some regions, like India and Newfoundland, have unique time offsets, while others, like China, use a single time zone for the entire country, despite its vast geographical expanse. These time zones help account for the Earth's rotation and the division of the world into distinct regions with their local times, allowing for coordinated scheduling, travel, and communication across different parts of the globe. There are a total of 38 time zones in the world, ranging from UTC-12 to UTC+14.

How many time zones are there in the world？ UTC provides a common point of reference, ensuring that people and systems across the world can coordinate events and activities accurately, regardless of their geographical location. This consistency makes it crucial for various applications, including global communication, navigation, and scientific research. UTC is based on highly precise atomic clocks and occasionally adjusted with leap seconds to account for Earth's irregular rotation. It is not influenced by time zones or daylight saving time changes. What is Coordinated Universal Time？Ĭoordinated Universal Time (UTC) is the global timekeeping standard used as a reference for time worldwide. DST is observed in some regions but is not universally adopted worldwide. It aims to save energy and promote outdoor activities. What is daylight saving time？ĭaylight Saving Time (DST) is a time adjustment practice where clocks are typically set one hour ahead during the summer to extend daylight hours. You can rest assured that the time is accurate.

Yes, all clock times take into account the effects of daylight saving time. Are clock times affected by daylight saving time? How to use World Clock?Īll you need to do is click on the link below the blue earth icon on the home page to get a table of major cities in the world, click on any city to see the current time in that city. It is very easy to use, you can select two cities or time zones on the page and click on the convert button to see the time comparison between the two cities or time zones. It is a useful tool for people who travel internationally and engage in international activities. This page also allows you to view the local time of most cities in the world.

This is a time zone converter and a world clock that helps you convert two cities or time zones and then compare them to see their current time.

World clock time converter