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Time Zone Converter

Convert time between different time zones instantly

Convert Time Between Time Zones

Enter a time, select source and target time zones to convert.

All times are converted accurately considering daylight saving time where applicable.

Time Conversion Result

12:00 PM
NST (America/St_Johns)
11:30 PM
JST (Asia/Tokyo)

How Time Zone Conversion Works

Time zone conversion is essential in our globalized world for coordinating activities across different regions. Here's how it works:

  1. Identify the source time and time zone: Determine the time you want to convert and its original time zone.
  2. Identify the target time zone: Know which time zone you want to convert to.
  3. Calculate the time difference: Find the difference in hours between the two time zones.
  4. Adjust for daylight saving time: Account for any daylight saving time adjustments in either location.
  5. Apply the conversion: Add or subtract the time difference to get the equivalent time in the target zone.

Understanding Time Zones

Time zones are regions of the Earth that have the same standard time. There are 24 primary time zones in the world, each generally 15 degrees of longitude wide and one hour apart.

Time Zone Abbreviation UTC Offset Major Regions
Pacific Standard Time PST UTC-8 West Coast USA, Canada
Eastern Standard Time EST UTC-5 East Coast USA, Canada
Greenwich Mean Time GMT UTC+0 UK, Ireland, Portugal
Central European Time CET UTC+1 Most of Western Europe
India Standard Time IST UTC+5:30 India, Sri Lanka
Japan Standard Time JST UTC+9 Japan, South Korea

Daylight Saving Time Considerations

Many regions observe daylight saving time (DST), moving clocks forward by one hour during summer months. This can affect time zone conversions:

  • DST typically begins in spring and ends in autumn
  • Not all countries observe DST
  • Start and end dates vary by country
  • Some regions have partial observance

Our converter automatically accounts for daylight saving time based on current dates.

Practical Applications of Time Zone Conversion

  • Scheduling international business meetings
  • Coordinating with remote teams
  • Planning travel itineraries
  • Watching global events live
  • Contacting friends and family abroad

How to Use This Converter

  • Enter a time in 12-hour format (e.g., 2:00 PM)
  • Select the source time zone from the dropdown
  • Select the target time zone from the dropdown
  • Click "Convert Time" to see results
  • Use common conversion links for quick results
World Time Zone Map
World Time Zones

The world is divided into 24 time zones, each approximately 15 degrees of longitude wide.

Did You Know?

China, despite spanning five geographical time zones, uses a single time zone (China Standard Time) across the entire country.

The International Date Line creates a time difference of 24 hours between some neighboring islands.

Related Time Tools

Frequently Asked Questions About Time Zones

UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is within about 1 second of mean solar time at 0° longitude and is not adjusted for daylight saving time.

There are 24 primary time zones in the world, each generally 15 degrees of longitude wide. However, with various exceptions and custom time zones, there are actually more than 40 different time zones in use.

Time zones were created to standardize time across regions as the expansion of transport and communication during the 19th century made time coordination increasingly important. Before time zones, each town kept its own solar time.

Daylight saving time (DST) temporarily shifts a time zone's standard time, typically by one hour forward during warmer months to extend evening daylight. This means that during DST, a time zone's UTC offset changes, affecting conversions to other time zones.

France has the most time zones with 12 (13 including its claim in Antarctica), due to its territories around the world. Russia spans 11 time zones, the most for a single contiguous country.