Time Zone Converter
Convert a time from one time zone to another. Daylight saving is handled automatically using your browser's built-in IANA timezone database. Pick a source zone, a target zone, and a time — the converted time and the offset difference appear instantly.
How to Use the Time Zone Converter
- Select the source time zone and the target time zone.
- Pick a date and time in the source zone.
- The converted time appears immediately, along with the UTC offset for each zone.
- Use "Swap Zones" to reverse the direction, or "Use Current Time" to start from now.
Why This Converter Stays Accurate
The conversion uses the browser's native Intl.DateTimeFormat API, which reads the IANA timezone database bundled with your operating system. That means daylight saving transitions, half-hour offsets (like India's +05:30), and 45-minute offsets (like Nepal's +05:45) are all handled correctly without any manual updates. No API call, no server, no stored data.
Frequently Asked Questions
Is this time zone converter free?
Yes — completely free, no signup, no API key, no limits. Everything runs in your browser using the built-in timezone data. There is no server call and no cost per conversion.
Does it handle daylight saving time?
Yes. The browser's IANA database knows the exact DST rules for every zone, including the dates clocks change. If you convert a summer date, DST is applied. If you convert a winter date, standard time is used. The UTC offset shown for each zone reflects the actual offset on the date you selected.
What time zones are supported?
All IANA time zones — over 400 zones covering every country and major city. The dropdown is grouped by region (Africa, America, Asia, Atlantic, Australia, Europe, Indian, Pacific) so you can find your zone quickly.
Why does the offset show +05:30 instead of a whole number?
Some time zones use half-hour or 45-minute offsets. India is UTC+05:30, Nepal is UTC+05:45, and a few Pacific zones are UTC+12:45. These are real, permanent offsets — not errors. The converter shows them correctly.
Is my data private?
Yes. No time, date, or timezone selection is sent to any server. Everything is calculated locally in your browser. Nothing is stored or logged.
Can I use this to schedule meetings across time zones?
Yes. Enter the meeting time in your zone and select the other person's zone to see their local time. You can also swap zones to check the reverse direction. For recurring meetings, note the offsets during DST and standard time separately — the difference may shift by an hour when one zone changes clocks and the other does not.