Timezone Converter
Convert a time between two or more timezones at once.
Calculated locally in your browser using your device's date and time.
- Compare up to 6 timezones side by side for the same moment — not just one pair at a time.
- Uses the browser's IANA timezone data, so daylight-saving shifts are applied automatically.
- Convert a specific date and time, not just "now" — useful for scheduling ahead.
- Flags when a converted time falls on a different calendar day, so a late-night call doesn't quietly land on the wrong date for someone.
- Runs in your browser.
Why this is private
- Calculated locally in your browser using your device's date and time.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Converts a specific date and time from one timezone into up to six others at once, using your browser's built-in timezone database.
How to use it
- 1Enter a date and time.
- 2Pick the source timezone.
- 3Add one row per timezone you want to compare it against — up to 6 — and every converted time updates together.
Frequently asked questions
What people use it for
Schedule a call across regionsSee what 3 pm in London is for colleagues in New York and Bangalore at the same time, side by side.
Convert a webinar or launch timeTranslate an announced start time into every timezone your audience is in.
Check a deadline stated in another zoneConvert "23:59 PT" to your local time so you don't miss it.
Plan travel arrival timesWork out the local time you'll land after a long flight.
Related tools
All developer toolsUnix Timestamp ConverterConvert between Unix timestamps and human-readable dates.Date Difference CalculatorCalculate the number of days, weeks or months between two dates — or just business days.Add / Subtract Date CalculatorAdd or subtract days, weeks, months or years from a date — with an optional business-days mode.Age CalculatorCalculate exact age in years, months and days from a birth date, plus the total in weeks, hours, minutes and seconds.
Ready to use Timezone Converter?
Timezone Converter