Time Zone Converter
See one date and time across major world time zones at a glance, runs entirely in your browser.
About this tool
Pick a date and time and see the same instant rendered in a curated set of major time zones, from UTC and US zones through Europe, the Gulf, South and East Asia, and Australia. Formatting uses the browser’s Intl.DateTimeFormat with each zone’s real IANA identifier, so daylight saving transitions are handled correctly for every zone rather than assuming a fixed UTC offset.
This is the everyday tool for scheduling a meeting or a deployment window across a distributed team: does "9am Pacific" land during business hours in Berlin or the middle of the night in Singapore. Fixed UTC offsets get this wrong twice a year around daylight saving changes; using each zone’s actual identifier does not.
Frequently asked questions
- Why does a city show a different UTC offset than I expected?
- Most of the zones listed observe daylight saving time, so their offset from UTC shifts by an hour for part of the year. Using each zone’s real IANA identifier (e.g. America/New_York) rather than a fixed "-05:00" offset means the tool always reflects whichever offset is actually in effect on the date you picked.
- Why is my own city not in the list?
- The list covers one representative zone per major region rather than the full IANA database of roughly 600 zones. Most cities within the same region share the same offset and daylight-saving rules as the listed reference zone.
- Does this account for daylight saving time automatically?
- Yes. Because each row is computed for the exact date you selected using that zone’s real rules, a date in July and a date in January can show different UTC offsets for the same zone, exactly as they would in reality.
- Is my selected date and time sent anywhere?
- No. All formatting happens locally using the browser’s Intl.DateTimeFormat API, no network request is made.
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