Time Zone Converter & Meeting Planner — IST, EST, PST, UTC

Convert a time between any world time zones with daylight-saving handled and a meeting planner grid. Free, no sign-up, and your files never leave your device.

Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.

Convert a date and time from one time zone into many others at once, with daylight saving handled automatically. Type city names or abbreviations like IST, EST or PST, and use the meeting planner to find hours that suit everyone.

Step by step

  1. Choose the source zone: Pick it in From time zone — your own zone is selected by default.
  2. Set date and time: Enter the Date and Time you want to convert.
  3. Add zones: Type a city, region or abbreviation in the box and press Add.
  4. Plan a meeting: In the Meeting planner, shaded cells are 09:00–18:00 locally; outlined columns work for everyone.

Handy for

Remote teams

Find a call time across India, Europe and the US.

Webinars

Tell attendees the start time in their own zone.

Travel

Work out arrival times after crossing zones.

Family calls

Call relatives abroad at a sensible hour.

Good to know

  • Abbreviations are ambiguous worldwide (IST is also used in Ireland and Israel); the tool maps IST to India.

  • If you choose a time skipped by a daylight-saving change (such as 02:30 when clocks jump from 02:00 to 03:00), the tool moves it forward by the gap and says so; for an hour that repeats when clocks go back, it uses the first one.

Questions

Does it handle daylight saving time?

Yes — conversions use your browser’s built-in time-zone database, so US, UK, EU and other DST rules apply for the date you choose.

What is IST to EST?

India is 10 h 30 min ahead of New York in winter (EST) and 9 h 30 min ahead in summer (EDT).

Is anything sent to a server?

No. Every calculation runs in your browser, so the numbers you type never leave your device. The page keeps working offline once it has loaded.

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