Time Zone Converter
Pick a time in one city and see the local time in others, day shifts included.
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About this tool
Pick a date, a time and a source city, and read the local wall-clock time in every city on your list, with the weekday and a +1 or -1 day badge whenever the conversion crosses midnight. Each row shows the city's UTC offset for that specific date, so daylight saving is always accounted for; the list and your source city are remembered for next time.
City search pins down an exact IANA timezone, which zone abbreviations cannot: IST alone means three different offsets depending on who is talking. Everything runs in your browser using its built-in timezone database and a bundled city list, so scheduling that call reveals nothing to anyone. Odd offsets like Kathmandu's +5:45 work exactly.
Frequently asked questions
- Does this handle daylight saving correctly?
- Yes. Conversions use the IANA timezone database built into your browser, so each city applies its own daylight saving rules for the specific date you pick, not a fixed offset.
- Why search for a city instead of picking a zone like EST?
- Abbreviations are ambiguous: IST means Indian, Irish and Israel time, and EST changes meaning with daylight saving. A city pins down the exact IANA zone, rules and all.
- What does the +1 day badge mean?
- The converted time lands on a different calendar date than the one you picked. A late evening call in Los Angeles is the next morning in Sydney; the badge makes the day shift impossible to miss.