Calculators · Free Tool
Timezone Converter
Convert a date and time from one timezone to several others at once, showing meeting times across cities instantly, with DST handled automatically.
About this tool
Pick a date and time in a source timezone, and this tool shows the equivalent local time in a set of major cities and timezones at once, including UTC, New York, London, Berlin, Dubai, Mumbai, Singapore, Tokyo, Sydney, and Los Angeles, so you can see an entire meeting's local times side by side instead of converting one pair at a time.
All conversions use the browser's built-in Intl.DateTimeFormat with IANA timezone identifiers, which correctly accounts for each region's current daylight-saving rules, including the fact that not every timezone observes DST, and that the US and Europe don't switch on the same dates.
Common uses
- Schedule a meeting across multiple offices and see everyone's local time at once
- Check whether a specific time falls inside or outside someone's working hours in another timezone
- Confirm what a UTC timestamp from a log file or API actually corresponds to in your local time
Frequently asked questions
Does this tool account for daylight saving time automatically?
Yes. It uses each location's real IANA timezone identifier (like America/New_York, not a fixed UTC offset), so the conversion is correct whether or not daylight saving is in effect on the date you picked.
Why do some countries not shift by a whole hour?
A handful of regions, India, Iran, and parts of Australia among them, use 30- or 45-minute offsets from UTC rather than whole hours, for historical and geographic reasons. The tool handles these correctly since it relies on real timezone data, not simple hour math.
Can I convert a past or future date, not just right now?
Yes. Pick any date and time, and the tool correctly applies whatever daylight-saving rules were or will be in effect for that specific date in each timezone, not just the rules in effect today.
Is my data uploaded to a server?
No. This tool runs entirely in your browser using JavaScript, so nothing you type is transmitted, logged, or stored anywhere. You can even use it offline once the page has loaded.