Timezone Converter
Convert times between zones
Timezone Converter
Convert times between zones
Features
- Convert a date/time between any IANA timezone pair (America/New_York → Asia/Tokyo, etc.)
- Uses the browser's Intl.DateTimeFormat — automatically DST-aware
- 12-hour / 24-hour display toggle
- Preset city shortcuts for major timezones
- Runs entirely in your browser
How to use
- Enter your input data in the provided field.
- Configure any options as needed.
- View the results instantly and copy or download the output.
Tips & Best Practices
- IANA timezone names like "America/New_York" handle DST transitions for you — they're city-based, not offset-based.
- Fixed UTC offsets (e.g., UTC+5) ignore DST. Use IANA names for places that observe daylight saving.
- Some zones change rules: e.g., Russia ended seasonal time in 2014; the IANA database tracks the historical rules.
- When in doubt, use the closest large city for the timezone you want — populated places stay in the IANA database.
- Everything is computed locally using the browser's timezone data; no API call is made.
FAQ
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Is my data private?
All processing happens in your browser. No data is ever sent to any server or third party.
Does it work offline?
Once loaded, the tool works entirely offline. All processing is done client-side with JavaScript.
Which browsers are supported?
Works in Chrome, Firefox, Safari, Edge, and all modern browsers on desktop and mobile.
Can I use the results commercially?
Yes, all output is yours to use freely in any personal or commercial project without restrictions.