TIME ZONE FIELD NOTES
EST, EDT and IST:
which time do you mean?
One hour can change a meeting. Use the date and the intended Eastern rule, not the abbreviation alone.
The short answer
| Time zone | UTC offset | India is ahead by |
|---|---|---|
| EST · Eastern Standard Time | −05:00 | 10 h 30 min |
| EDT · Eastern Daylight Time | −04:00 | 9 h 30 min |
| IST · India Standard Time | +05:30 | — |
Here, IST always means India Standard Time. The same abbreviation is used for other time zones elsewhere, so write “India” in an invitation.
For a New York meeting, choose New York
New York follows Eastern Standard Time in winter and Eastern Daylight Time during daylight saving. If someone schedules a call for noon in New York, its India time depends on the date.
- January 15, 2026 at 12:00 in New York → 22:30 in India.
- July 15, 2026 at 12:00 in New York → 21:30 in India.
- 12:00 at a fixed UTC−05:00 offset → 22:30 in India, on either date.
If an invitation says “EST” in July, that wording alone does not establish the organizer’s intent. Confirm whether they mean fixed UTC−05:00 or local Eastern time.
Try the July example ↗Two dates need extra care in 2026
March 8: a missing hour
At 02:00, New York clocks move forward to 03:00. A local time of 02:30 does not exist that day. Choose a valid time before 02:00 or at/after 03:00; the converter will not silently move your meeting.
November 1: a repeated hour
At 02:00 daylight time, clocks move back to 01:00 standard time. New York 01:30 happens twice:
- First occurrence: 01:30 EDT → 11:00 IST.
- Second occurrence: 01:30 EST → 12:00 IST.
Choose the occurrence explicitly before copying or sharing the result. Converting from India gives a unique moment and includes the Eastern offset.
Crossing midnight changes the date
January 15 at 20:00 fixed EST becomes January 16 at 06:30 IST. In reverse, January 15 at 08:00 IST becomes January 14 at 21:30 fixed EST. Always copy the date as well as the time.
Sources and calculation limits
The converter supports input dates from 2000 through 2099. New York calculations use the browser’s IANA America/New_York time-zone data. Future government rule changes or outdated browser data can change a future conversion; keep your browser current and reconfirm important future meetings.