Time Zone Calculator
Convert time between any two time zones instantly. Includes support for major cities and UTC offsets.
Understanding Time Zones and Conversions
What are Time Zones?
Time zones are regions of the globe that observe a uniform standard time. They were created to establish a standardized system for keeping time across different geographical locations. The modern time zone system is based on UTC (Coordinated Universal Time), which serves as the global time standard.
Key Time Zone Concepts
- UTC (Coordinated Universal Time): The primary time standard by which all other time zones are calculated.
- GMT (Greenwich Mean Time): The mean solar time at the Royal Observatory in Greenwich, London.
- DST (Daylight Saving Time): The practice of advancing clocks during summer months to extend daylight hours into the evening.
Time Zone Calculations
Time zone calculations consider several factors:
- UTC offset of the source and target time zones
- Date line crossings (may affect the date)
- Daylight Saving Time periods (when applicable)
- Local time zone rules and variations