IST to EST Converter
EST is 10 hours 30 minutes behind IST. During US daylight saving (EDT), the gap narrows to 9 hours 30 minutes.
Daylight saving note: During US EDT (March–November), the gap narrows to 9h 30m behind IST. India never observes DST.
IST to EST Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇮🇳 IST | 🇺🇸 IST → ESTUTC+5:30 to UTC-5 | 🇺🇸 IST → EDTUTC+5:30 to UTC-4 | Note |
|---|---|---|---|
| 00:00 | 1:30 PM | 2:30 PM | prev day |
| 01:00 | 2:30 PM | 3:30 PM | prev day |
| 02:00 | 3:30 PM | 4:30 PM | prev day |
| 03:00 | 4:30 PM | 5:30 PM | prev day |
| 04:00 | 5:30 PM | 6:30 PM | prev day |
| 05:00 | 6:30 PM | 7:30 PM | prev day |
| 06:00 | 7:30 PM | 8:30 PM | prev day |
| 07:00 | 8:30 PM | 9:30 PM | prev day |
| 08:00 | 9:30 PM | 10:30 PM | prev day |
| 09:00 | 10:30 PM | 11:30 PM | prev day |
| 10:00 | 11:30 PM | 12:30 AM | prev day |
| 11:00 | 12:30 AM | 1:30 AM | |
| 12:00 | 1:30 AM | 2:30 AM | |
| 13:00 | 2:30 AM | 3:30 AM | |
| 14:00 | 3:30 AM | 4:30 AM | |
| 15:00 | 4:30 AM | 5:30 AM | |
| 16:00 | 5:30 AM | 6:30 AM | |
| 17:00 | 6:30 AM | 7:30 AM | |
| 18:00 | 7:30 AM | 8:30 AM | |
| 19:00 | 8:30 AM | 9:30 AM | |
| 20:00 | 9:30 AM | 10:30 AM | |
| 21:00 | 10:30 AM | 11:30 AM | |
| 22:00 | 11:30 AM | 12:30 PM | |
| 23:00 | 12:30 PM | 1:30 PM |
"prev day" = converted time falls on the previous calendar day.
Best Hours to Schedule India Standard Time–Eastern Standard Time Calls
For Indian professionals scheduling calls with US East Coast colleagues, the practical window is 6:30–8:00 PM IST (8:00–9:30 AM EST). A 7:00 PM IST standup lands at 8:30 AM New York — both sides start their respective day or evening.
About India Standard Time (IST)
India Standard Time (IST, UTC+5:30) covers the entire country without regional variations. At UTC+5:30, IST sits ahead of the US East Coast by more than 10 hours — one of the largest gaps between two major tech industry hubs in the world. The IT sector employs over 5 million people in India who regularly coordinate with US counterparts across this gap.
About Eastern Standard Time (EST)
Eastern Standard Time (EST, UTC-5) covers the US East Coast. From March to November, it advances to EDT (UTC-4). For Indian teams, this seasonal US clock shift means their daily US call slot moves by one hour — 6:30 PM IST becomes 8:30 AM EDT instead of 8:00 AM EST.
How to Avoid India Standard Time–Eastern Standard Time Conversion Mistakes
Use the live clocks and the table for different jobs. The live clocks show the current offset between India Standard Time and Eastern Standard Time. The table gives you a stable reference for planning common hours. If the page has more than one table column, pick the column that matches the season or DST state shown in the column label.
Daylight saving is the main trap. Some pairs stay fixed all year, while others move by one hour because only one side changes clocks, or because the two sides change on different dates. That is why this page keeps the daylight saving note near the live clocks and labels alternate table scenarios instead of hiding the offset change in a paragraph.
Always check the calendar date when the converted time lands near midnight. A late evening time in India Standard Time can become the next day in Eastern Standard Time, and an early morning time can still be the previous day. If the table marks "next day" or "prev day", include that date shift in the message or calendar invite.
Abbreviations can be ambiguous. ET can mean EST or EDT; London can be GMT or BST; Sydney can be AEST or AEDT. City names and IANA time zones are safer for exact scheduling than abbreviations alone. For recurring meetings, test the same local time once in January and once in July before you lock it in.
For one-off events, enter the exact date and time in the main time zone converter or meeting scheduler if the table does not show your hour. That keeps the answer tied to the correct daylight saving rule instead of a memorized offset.
When you share the result, write both local times in one line: "10:00 AM IST/ converted EST time." For client calls, flights, webinars, launches, and deadlines, also include the date. The extra wording feels repetitive, but it gives every recipient a second way to catch a timezone mistake before it becomes a missed meeting. It is especially helpful when someone forwards the invite to a third city.
Frequently Asked Questions
What time is 8 PM IST in EST?
8:00 PM IST is 9:30 AM EST during standard time (UTC-5). During US EDT (summer), 8:00 PM IST is 10:30 AM EDT.
What is 9:00 AM EST in IST?
9:00 AM EST is 7:30 PM IST. During US EDT, 9:00 AM EDT is 6:30 PM IST. This is why India-based teams often schedule their US calls in the early evening IST.
When should Indian teams call US Eastern clients?
The best window from India is 6:30–8:00 PM IST, which maps to 8:00–9:30 AM EST. For US Pacific clients, the window is later — 9:30 PM–midnight IST for a 8:00–10:30 AM PST slot.
Does IST change for daylight saving?
No. IST stays at UTC+5:30 year-round. The EST-IST gap changes only when the US shifts clocks in March (to EDT) and November (back to EST).