Timezone Converter
Convert time between different timezones
Last updated: January 2025
About This Tool
A timezone converter translates time from one timezone to another, essential for coordinating across different regions. Whether scheduling international meetings, planning travel, or connecting with remote teams, accurate timezone conversion prevents costly miscommunication.
What is Timezone Converter?
Timezones are regions of the Earth that observe a uniform standard time for legal, commercial, and social purposes. The world is divided into 24 primary timezones, each approximately 15 degrees of longitude wide. A timezone converter calculates equivalent times across these zones, accounting for offset differences and daylight saving time.
How It Works
The converter uses UTC (Coordinated Universal Time) as a reference. Each timezone has an offset from UTC (e.g., EST is UTC-5). To convert between timezones, the time is first converted to UTC by applying the source timezone offset, then converted to the target timezone by applying its offset.
Formula
Target Time = Source Time - Source Offset + Target Offset
New York (EST/EDT)
Tue, Feb 3, 07:00 AM
London (GMT/BST)
Tue, Feb 3, 12:00 PM
+5 hours difference
All Timezones
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When to Use This Calculator
- 1Scheduling meetings with international colleagues or clients
- 2Planning travel across multiple timezones
- 3Setting deadlines for global teams
- 4Watching live events broadcast from other countries
- 5Coordinating with family or friends abroad
Pro Tips
- •Remember that daylight saving time can change offsets by an hour
- •Not all countries observe daylight saving time
- •Some timezones have unusual offsets (India is UTC+5:30)
- •The International Date Line means crossing Pacific can change the date
- •Use city names rather than abbreviations for clarity (EST could be Eastern or Australian)
Common Mistakes to Avoid
- •Forgetting about daylight saving time transitions
- •Confusing similar timezone abbreviations (CST: Central, China, Cuba)
- •Not accounting for the date change when crossing midnight
- •Assuming all countries use whole-hour offsets
- •Not considering that DST dates differ between hemispheres