Time Zones Converter
Convert time and date between different time zones worldwide
Convert Time Between Zones
Greenwich Mean Time, reference point for all time zones
Eastern North America, parts of South America
Common Time Zone Conversions
| From | To | Time Difference | Example |
|---|---|---|---|
| EST (New York) | GMT (London) | +5 hours | 3:00 PM EST = 8:00 PM GMT |
| PST (Los Angeles) | EST (New York) | +3 hours | 12:00 PM PST = 3:00 PM EST |
| JST (Tokyo) | EST (New York) | -14 hours | 10:00 AM JST = 8:00 PM EST (prev. day) |
| IST (India) | GMT (London) | -5.5 hours | 6:00 PM IST = 12:30 PM GMT |
| AEST (Sydney) | PST (Los Angeles) | -19 hours | 2:00 PM AEST = 7:00 PM PST (prev. day) |
Current UTC Time
Popular Time Zones
Time Zone Tips
UTC is the reference point for all time zones
Daylight saving time shifts zones by 1 hour
Some zones have 30 or 45-minute offsets
International Date Line marks day changes
Business hours vary greatly across zones
Understanding Time Zones
What are Time Zones?
Time zones are geographical regions that observe uniform standard time for legal, commercial, and social purposes. They were created to coordinate time worldwide while maintaining a relationship between local solar time and clock time.
Why Do We Use Time Zones?
- •Coordinate activities across different regions
- •Maintain connection to solar time and daylight
- •Facilitate international communication and travel
- •Organize global business and transportation
UTC - Universal Reference
Universal Coordinated Time (UTC) serves as the reference point for all time zones. It's based on atomic time and doesn't observe daylight saving time, making it the most reliable standard for global coordination.
Time Zone Naming
- •Standard abbreviations: EST, PST, GMT, CET
- •UTC offset: UTC+5, UTC-8, etc.
- •Military zones: A-Z (excluding J)