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Time Zone Converter

Convert any date and time between world time zones — instantly. Handles Daylight Saving Time automatically. Common conversions: IST ↔ EST, IST ↔ PST, GMT ↔ EST, UTC ↔ local.

How the conversion works

Each time zone is an offset from UTC (Coordinated Universal Time). We use the IANA time-zone database via the browser's `Intl.DateTimeFormat` API — it knows every zone's current and historical DST rules, so April-October offsets for places like New York (EDT = UTC-4) automatically differ from November-March (EST = UTC-5).

When you'll use this converter

  • Scheduling international meetings (IST ↔ EST, IST ↔ PST)
  • Live-streaming and event times across regions
  • Travel itineraries
  • Coordinating with overseas freelancers / clients
  • Cricket and sports match times in viewers' local time

Frequently asked

What is the time difference between IST and EST?

Indian Standard Time (IST) is 9 hours 30 minutes ahead of US Eastern Standard Time (EST). During US daylight saving (EDT), it's 9 hours 30 minutes ahead.

Does this converter handle Daylight Saving Time?

Yes. We use the IANA time-zone database via the browser's Intl API, which knows the exact DST start/stop dates for every zone.

What's the difference between GMT and UTC?

Practically zero for everyday use. UTC is the modern atomic-clock-based standard; GMT is a historical zone (Greenwich Mean Time) that for most purposes is identical to UTC.