Convert an ISO datetime between time zones, view the instant in UTC and preview common zone representations.
Use IANA Timezone Names
Timezones like "America/New_York" automatically handle daylight saving time changes.
UTC for Coordination
When scheduling across multiple zones, share the UTC time to avoid confusion.
Save Your Frequently Used Zones
Add timezones you use often to the quick view for instant conversions.
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It doesn't observe daylight saving time and serves as the reference point for all other timezones. For example, New York is UTC-5 in winter and UTC-4 in summer.
Our converter uses IANA timezone database which automatically accounts for daylight saving time (DST) transitions. When you select a timezone like "America/New_York", it will correctly show EST or EDT based on the date you're converting.
Some countries use non-standard offsets like +5:30 (India), +5:45 (Nepal), or +9:30 (parts of Australia). These are based on historical, political, or geographical decisions. Our converter supports all official IANA timezones including these special cases.
Yes! Simply select any date and time using the date picker. The converter will accurately handle historical DST rules and known future DST schedules based on the IANA timezone database.
Our Timezone Converter is a free online tool that helps you convert times between different timezones around the world. Whether you're scheduling international meetings, coordinating with remote teams, or planning travel, this tool makes timezone conversions quick and accurate.
The converter uses the IANA Time Zone Database (also known as tzdata or the Olson database), which is the most widely used and authoritative source for timezone information. It covers over 400 timezones worldwide and is regularly updated to reflect changes in timezone rules.
Key features include: automatic detection of your local timezone, support for all major world timezones, daylight saving time handling, customizable quick-access zones, and a clean interface that works on desktop and mobile devices.
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