Time Zone Converter
Convert a time between cities and plan meetings across time zones.
How to use Time Zone Converter
- Pick the date and time, and the city or time zone it is in.
- Choose up to four other cities or zones.
- Read the converted times, and use the planner to find hours that suit everyone.
How it works
Conversions use your browser’s copy of the IANA time zone database, the same data used by operating systems, so daylight saving time is applied for the exact date you choose. Zones are named by city (for example Asia/Karachi or America/New_York) because abbreviations like "IST" are ambiguous (India, Ireland and Israel all use it).
Around daylight-saving changes some local times do not exist (when clocks jump forward) and others happen twice (when clocks go back). The converter tells you when that applies to your chosen time.
Example
9:00 in New York on 9 November 2026 (EST, UTC−5) is 14:00 in London, 19:00 in Karachi, 19:30 in India and 23:00 in Tokyo.
Frequently asked questions
What is the difference between EST and EDT?
EST (UTC−5) is New York’s standard time in winter; EDT (UTC−4) is its daylight time in summer. Using a city name avoids picking the wrong one.
Which time zone is "IST"?
It can mean India (UTC+5:30), Ireland (UTC+1 in summer) or Israel (UTC+2/+3). Choose Asia/Kolkata, Europe/Dublin or Asia/Jerusalem instead.
Does Pakistan use daylight saving time?
Not currently: Pakistan Standard Time is UTC+5 all year. Time zone rules can change by law, which the IANA database tracks.
Why might a result be off by an hour?
If your browser or operating system has an outdated time zone database. Updating the browser fixes it.
Limitations
- Depends on the browser’s time zone data being up to date.
- Historical dates before about 1970 may have less precise rules.
Last reviewed November 9, 2026. How we build and test tools.