Time Zone Converter
Convert time between any time zones worldwide
How Time Zone Conversion Works
Time zones are regions that observe the same standard time, typically expressed as an offset from UTC (Coordinated Universal Time).
UTC Offsets
Each time zone has a UTC offset. For example, IST is UTC+5:30 and EST is UTC-5:00. To convert, calculate the difference between the two offsets.
Daylight Saving Time
Many countries shift clocks forward by 1 hour during summer months. This tool automatically accounts for DST using the Intl API.
Frequently Asked Questions
What is UTC?
UTC (Coordinated Universal Time) is the primary time standard. Time zones are expressed as offsets from UTC.
What is the time difference between IST and EST?
IST (UTC+5:30) is 10 hours and 30 minutes ahead of EST (UTC-5:00).
Does this tool handle daylight saving time?
Yes, it uses the browser's Intl.DateTimeFormat API which automatically handles DST transitions.
How many time zones are there in the world?
There are 38 time zones, ranging from UTC-12:00 to UTC+14:00.