About this timezone converter
Pick a source and a target time zone, enter any date and time, and see the same instant on both sides — weekday and UTC offset included. Zone data comes from the IANA database built into your browser, so daylight-saving transitions are handled automatically; the input defaults to now, the source to your local zone and the target to UTC.
The reference row below shows the same instant in UTC, New York, London, Tokyo and your local zone at once — ideal for lining up cross-time-zone meetings. All conversions use Intl.DateTimeFormat locally, with no server requests, so the tool also works offline.