Time Zone Conversion

Time Zone Conversion converts times instantly as you type. Convert between major world cities, countries and timezones in both directions.
Try: Local time, or UTC  
Try: Japan, or Pacific Time Switch to 24 hour
How does Timezones Work? | Timezones by Country | TimeZone Guide | TimeZone Map | Daylight Map | World Clock | TimeZone acronyms and abbreviations
Timezones by UTC Offset | Timezones in North America | Timezones in Australia | Timezones in Europe | Military / NATO / letter timezones
Greenwich Mean Time | History of Time | Measurement of Time | Time Standards | What is Time | Is Time Travel Possible?
UTC (Universal Time Coordinated) | DST (Daylight Saving Time) | Standard Time | Time Difference

TimeZone Guide

World timezones are actually a relatively new part of the way that the civilized world works. World timezones were created in order to create a certain amount of uniformity in how people describe their time of day in different parts of the world. Using local or solar time makes it nearly impossible for a modern society to work. If we didn't have world timezones, scheduling trains would be nearly impossible, planning meetings in different countries would quickly prove problematic, and similar issues would arise daily.
Daylight doesn't hit the world uniformly, which means that if there was a single standard time worldwide, you would have a completely different impression of what 10:00 AM would look like. Though this does not sound like a major problem, it does make many things difficult to describe, such as the time of day. In the times before world timezones, people would often find it nearly impossible to schedule meetings at a long distance due to the difficulty in coming to an agreement on what time it was. World timezones are made for legal, social, and commercial purposes in mind.
Initially, there was only one real way to distinguish different world time zones. However, there are now multiple ways to discern time using a world clock. Still, the most common way to deal with the world clock is to use the Greenwich Mean Time, also known as GMT, as a measuring stick. Standard world timezones are made with an offset of hours referring to GMT. So, New Zealand's time is often quoted as being 11 hours and 30 minutes ahead of Greenwich Mean Time.
Advancements in the measuring of time allowed scientists to come up with a system that allows them to take into account the seconds that are lost with each year. This doesn't sound like much, but seconds do add up to minutes eventually. The newer form of time-telling using world timezones is called UTC, and is based off of GMT time-telling.
Normally, one would simply believe that GMT and UTC timezones are enough. But still, there are even more ways of differentiating time zones for those who are curious.
Many countries have chosen to use their own standard time zones, and so have many different groups of people. Military personnel often use military time zones to plan their maneuvers. Nautical time zones, which are non-skewed, are very common among people who frequently travel by boat. When it comes to different countries and continents, other common ways of dividing time zones include CET (Central European Time), and New Zealand Mean Time.
There is still a lot of bickering about which timezones are actually the best ones to use universally. There really isn't a universally accepted time zone scheme, and things are even more complicated when Daylight Savings Time is taken into consideration. Many, if not most, countries no longer practice Daylight Savings Time. The issue of Daylight Savings Time, or DST, has been one that has caused a certain amount of friction in international airports, as well as a lot of confusion abroad.
Travelers who are looking to find a reliable way to tell time abroad are best off using world timezones that are used by both military and naval personalities. They are often the most accurate ways to tell time. Of course, for those who are scheduling meetings, and figuring out when they will be able to catch a plane, it's best to search up the current world timezones your destination location happens to be using. After all, it's always better to be safe than sorry.
The decrease in daylight during the winter months is due to Earth's axial tilt of 23 degrees. If the Earth was not tilted on it's axis, the length of day and night would remain steady year long. During winter in the northern hemisphere there is less daylight hours, and the southern hemisphere in turn has longer daylight hours and experiences summer.
The main purpose of Daylight Saving Time (called "Summer Time" in many places in the world) is to make better use of daylight. In Ireland we advance our clocks forward by one hour in Spring to maximise daylight for the summer months. This has the effect of moving an hour of daylight from the morning to the evening. In Winter the clocks are then changed back by one hour to maximise daylight during morning hours.
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www.timezoneconversion.org © | Updated: May, 2014 | Online Unit Conversions