Time Zone Converter
Convert a date-time from one city/time-zone to another without spreadsheet math.
Convert a date-time from one city/time-zone to another without spreadsheet math.
Time Zone Converter takes a date-time in one time-zone and re-expresses it in another. The tool uses the JavaScript Intl API so it respects daylight-saving rules for every zone in the IANA database.
UTC never observes DST — use it as your anchor when collaborating across continents to avoid 'was that 3 pm your time or mine?' loops.
Time calculations quietly eat hours of a working week — booking cross-time-zone meetings, figuring out how many business days a document review takes, converting between epoch timestamps and human dates. toolsfy's date-and-time tools replace the dozen tabs, Excel formulas and clunky phone apps you currently juggle with one consistent, keyboard-friendly workspace that works identically on desktop and mobile.
Yes. Converters use the browser's Intl.DateTimeFormat and tzdata, so daylight-saving transitions match the official IANA time-zone database.
Planner and tracker tools store entries only in this browser's localStorage. Clear your site data or use the tool's Clear button to wipe everything.
After the first load, the CSS and JS are cached by the browser, so refreshes work with no network — perfect for long-haul flights.