Timezone Converter

Convert time from one timezone to another.

What Are Timezones?

Timezones are regions of the Earth that have the same standard time. They were created to account for the rotation of the Earth and the need for synchronized timekeeping across different regions. Before timezones, local mean time was used, meaning that every city or region had its own time based on the position of the sun.

The Formation of Timezones

The concept of timezones was introduced in the late 19th century by Sir Sandford Fleming, a Canadian engineer. Before that, each city kept its own time, which created confusion and complications, especially with the advent of rail travel and telegraph communication.

Timezones were first implemented in 1884 at the International Meridian Conference, where the Prime Meridian (0° longitude) was established in Greenwich, England. The world was then divided into 24 timezones, each one hour apart from its neighboring zone, with each timezone representing one hour of the Earth's 24-hour day.

The system was based on the Earth's rotation: one complete rotation equals 24 hours, and as the Earth rotates, different parts of the world experience daylight and nighttime at different times. By dividing the world into 24 equal timezones, the new system allowed for coordinated timekeeping across the globe.

Timezones continue to evolve today, with variations for daylight saving time and local adjustments, but the basic principle remains the same—helping people across the world synchronize their activities in a more efficient way.

List of Timezones

  • UTC -12:00 - Baker/Howland Islands Time
  • UTC -11:00 - Niue Time, Samoa Standard Time
  • UTC -10:00 - Hawaii-Aleutian Standard Time, Cook Islands Time
  • UTC -09:30 - Marquesas Islands Time
  • UTC -09:00 - Alaska Standard Time, Gambier Islands Time
  • UTC -08:00 - Pacific Standard Time (US & Canada), Clipperton Island Time
  • UTC -07:00 - Mountain Standard Time (US & Canada)
  • UTC -06:00 - Central Standard Time (US & Canada), Galápagos Time
  • UTC -05:00 - Eastern Standard Time (US & Canada), Colombia Time, Peru Time
  • UTC -04:00 - Atlantic Standard Time (Canada), Venezuela Time, Bolivia Time
  • UTC -03:30 - Newfoundland Standard Time
  • UTC -03:00 - Argentina Time, Brazil Time, Falkland Islands Time
  • UTC -02:00 - South Georgia & South Sandwich Islands Time
  • UTC -01:00 - Azores Standard Time, Cape Verde Time
  • UTC ±00:00 - Greenwich Mean Time, Western European Time
  • UTC +01:00 - Central European Time, West Africa Time
  • UTC +02:00 - Eastern European Time, Central Africa Time
  • UTC +03:00 - Moscow Standard Time, East Africa Time, Arabia Standard Time
  • UTC +03:30 - Iran Standard Time
  • UTC +04:00 - Gulf Standard Time, Samara Standard Time
  • UTC +04:30 - Afghanistan Time
  • UTC +05:00 - Pakistan Standard Time, Yekaterinburg Standard Time
  • UTC +05:30 - Indian Standard Time, Sri Lanka Time
  • UTC +05:45 - Nepal Time
  • UTC +06:00 - Bangladesh Standard Time, Bhutan Time, Omsk Standard Time
  • UTC +06:30 - Cocos Islands Time, Myanmar Time
  • UTC +07:00 - Indochina Time, Krasnoyarsk Standard Time
  • UTC +08:00 - China Standard Time, Australian Western Standard Time, Irkutsk Standard Time
  • UTC +08:45 - Australian Central Western Standard Time
  • UTC +09:00 - Japan Standard Time, Korea Standard Time, Chita Standard Time
  • UTC +09:30 - Australian Central Standard Time
  • UTC +10:00 - Australian Eastern Standard Time, Vladivostok Standard Time
  • UTC +10:30 - Lord Howe Standard Time
  • UTC +11:00 - Solomon Islands Time, Magadan Standard Time
  • UTC +12:00 - New Zealand Standard Time, Fiji Time, Kamchatka Standard Time
  • UTC +12:45 - Chatham Islands Time
  • UTC +13:00 - Tonga Time, Phoenix Islands Time
  • UTC +14:00 - Line Islands Time