Timezone Converter

How to use Timezone Converter

1. 1Enter your date and time. Use the date-time picker, or leave it on now. Then choose which time zone that moment belongs to.
2. 2Add target zones. Add any zones you care about from the list: offices, family, clients. Remove them just as easily.
3. 3Read the results. Each zone shows the converted local time with its UTC offset, daylight saving already accounted for.
4. 4Glance at the world clock. The bottom panel shows the current time in 12 major cities, ticking live.

Timezone Converter Features

• ✓Convert between any IANA time zones
• ✓Automatic daylight saving adjustments via Intl
• ✓Add and remove unlimited target zones
• ✓Live world clock for 12 major cities
• ✓UTC offset shown for every conversion
• ✓Works fully offline in your browser

Timezone Converter Frequently asked questions

How does it handle daylight saving time?

Through the browser's built-in Intl timezone database, which tracks historical and upcoming DST rules for every zone. You never need to know when a region switches; the converted times are already correct.

Why did a converted time shift by an hour compared to last month?

One of the zones entered or left daylight saving. The converter reflects the rules in effect on the specific date you entered, which is exactly why it beats a fixed offset chart.

Which time zones are supported?

All IANA time zones your browser knows, which is several hundred, covering every inhabited region. If a zone is missing, your browser's timezone data is outdated; updating the browser fixes it.

Does the world clock update in real time?

Yes, every second. It is the same Intl data as the converter, so what you see matches the conversions exactly.

Is an internet connection required?

No. Everything uses data already in your browser. Once the page is loaded, you can convert times with the network off.

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