Atlanta to IST
Atlanta is 9 hours and 30 minutes behind India Standard Time.
Times may vary due to daylight saving time.Quick answer. IST is 10 hours and 30 minutes ahead of Atlanta for part of the year and 9 hours and 30 minutes ahead for the rest, because Atlanta observes daylight saving time and the other side does not. The gap is 10 hours and 30 minutes during Atlanta's standard-time months and 9 hours and 30 minutes during daylight time, so always convert against a specific date.
Time difference
Atlanta, United States
EST UTC-5:00 EDT UTC-4:00 Observes DST
Atlanta and the rest of the United States.
- ↑ March 8, 2026 clocks forward at 3:00 AM · UTC-5:00 → UTC-4:00
- ↓ November 1, 2026 clocks back at 1:00 AM · UTC-4:00 → UTC-5:00
India Standard Time (IST)
IST UTC+5:30 No DST
Mumbai, Delhi, Bengaluru, Chennai, Kolkata, Hyderabad.
India runs on a single time zone, UTC+5:30, and has not observed daylight saving time since 1945. The half-hour offset is why IST conversions rarely land on a round hour.
Atlanta to IST conversion table
Every hour of the day for 2026. Because Atlanta changes clocks twice a year, these values shift by an hour across the daylight saving boundary — use the date picker above for a specific day.
| Atlanta | IST | 24-hour |
|---|---|---|
| 12 AM | 9:30 AM | 09:30 |
| 1 AM | 10:30 AM | 10:30 |
| 2 AM | 11:30 AM | 11:30 |
| 3 AM | 12:30 PM | 12:30 |
| 4 AM | 1:30 PM | 13:30 |
| 5 AM | 2:30 PM | 14:30 |
| 6 AM | 3:30 PM | 15:30 |
| 7 AM | 4:30 PM | 16:30 |
| 8 AM | 5:30 PM | 17:30 |
| 9 AM | 6:30 PM | 18:30 |
| 10 AM | 7:30 PM | 19:30 |
| 11 AM | 8:30 PM | 20:30 |
| 12 PM | 9:30 PM | 21:30 |
| 1 PM | 10:30 PM | 22:30 |
| 2 PM | 11:30 PM | 23:30 |
| 3 PM | 12:30 AM +1 day | 00:30 |
| 4 PM | 1:30 AM +1 day | 01:30 |
| 5 PM | 2:30 AM +1 day | 02:30 |
| 6 PM | 3:30 AM +1 day | 03:30 |
| 7 PM | 4:30 AM +1 day | 04:30 |
| 8 PM | 5:30 AM +1 day | 05:30 |
| 9 PM | 6:30 AM +1 day | 06:30 |
| 10 PM | 7:30 AM +1 day | 07:30 |
| 11 PM | 8:30 AM +1 day | 08:30 |
No row is highlighted because a standard 9–6 day in Atlanta never overlaps a 9–5 day in IST — see the meeting section below for the closest workable slots.
Popular conversion times
| Atlanta | IST |
|---|---|
| 9 AM Atlanta | 6:30 PM |
| 10 AM Atlanta | 7:30 PM |
| 11 AM Atlanta | 8:30 PM |
| 12 PM Atlanta | 9:30 PM |
| 3 PM Atlanta | 12:30 AM+1 day |
| 5 PM Atlanta | 2:30 AM+1 day |
| 6 PM Atlanta | 3:30 AM+1 day |
| 8 PM Atlanta | 5:30 AM+1 day |
Business hours and meeting times
Comparing a 9:00–18:00 working day in Atlanta against 9:00–17:00 in IST, across the whole week — a slot only counts if it lands on a working day at both ends.
Both sides work Monday to Friday, so the working weeks line up and you share 5 days.
Rows are days in Atlanta. Columns are hours of the Atlanta day.
No standard overlap
A 9–6 day in Atlanta never meets a 9–5 day in IST on any day of the week, so one side has to move outside normal hours. Ranked by how far outside:
- 9 AM Atlanta = 6:30 PM IST — well outside normal hours — 2 hours and 30 minutes beyond
- 10 AM Atlanta = 7:30 PM IST — well outside normal hours — 3 hours and 30 minutes beyond
- 11 AM Atlanta = 8:30 PM IST — well outside normal hours — 4 hours and 30 minutes beyond
These hold on every shared working day (5 a week). Teams working this gap regularly tend to alternate which side takes the early or late call, and keep the synchronous meeting short.
Public holidays
A shared working day is only usable if neither side is on holiday — and India and IST build their calendars on different systems, so the days each loses rarely coincide.
Over the next 8 weeks you share 40 working days. 3are lost to a public holiday on one side or the other, leaving 37.
| Date | Who is off | Holiday |
|---|---|---|
| Friday, October 2, 2026 | India | Gandhi Jayanti |
| Monday, October 12, 2026 | Atlanta | Columbus Day |
| Tuesday, October 20, 2026 | India | Dussehra (Vijayadashami) |
Next holidays in Atlanta
- Monday, October 12, 2026Columbus Daypublished date
- Wednesday, November 11, 2026Veterans Daypublished date
- Thursday, November 26, 2026Thanksgiving Daypublished date
- Friday, December 25, 2026Christmas Daypublished date
- Friday, January 1, 2027New Year's Daypublished date
Public holidays as published by https://date.nager.at, covering 2026–2028. Regional and employer-specific days are not included.
Next holidays in India
- Friday, October 2, 2026Gandhi Jayantisame date every year
- Tuesday, October 20, 2026Dussehra (Vijayadashami)partialpublished date
- Sunday, November 8, 2026Diwalipublished date
- Monday, November 9, 2026Diwalipublished date
- Friday, December 25, 2026Christmas Daypartialsame date every year
India has three national holidays on which the whole country closes. Everything else is either a central-government gazetted holiday that individual employers choose to observe, or a state holiday. Festival dates follow lunisolar calendars and move every year, so they are listed explicitly rather than derived.
Holiday dates for Atlanta and elsewhere come from a dataset last refreshed on 2026-09-12 (date.nager.at plus curated national calendars). Lunar dates — Eid, Chinese New Year, the Jewish holidays — are predicted and can move by a day once officially announced. Regional, state and employer-specific holidays are not included. Confirm anything you are booking a flight around.
About this conversion
India runs on a single time zone, UTC+5:30, and has not observed daylight saving time since 1945. The half-hour offset is why IST conversions rarely land on a round hour.
Frequently asked questions
What is the time difference between Atlanta and IST?
It depends on the date. IST is 10 hours and 30 minutes ahead of Atlanta in January and 9 hours and 30 minutes ahead in July, because Atlanta changes clocks for daylight saving time. Use the converter above with the date you actually need.
What time is 9 AM Atlanta in IST?
9:00 AM Atlanta is 7:30 PM in IST during IST, and 6:30 PM during daylight time. The table on this page lists all 24 hours for the date you pick.
What is the best time for a meeting between Atlanta and IST?
Standard working days do not overlap at all in this pair, so somebody has to stretch. The closest slot is 9 AM Atlanta / 6:30 PM IST — it well outside normal hours — 2 hours and 30 minutes beyond. Teams that meet regularly across this gap usually alternate who takes the awkward end.
Does Atlanta observe daylight saving time?
Yes. Atlanta alternates between EST (UTC-5:00) and EDT (UTC-4:00). In 2026, clocks in Atlanta go forward on March 8, 2026 and back on November 1, 2026. India does not shift at all, so the gap between the two moves twice a year.
When do the clocks change in Atlanta?
In 2026, clocks in Atlanta go forward on March 8, 2026 and back on November 1, 2026. Between those dates the gap from India is 9 hours and 30 minutes; outside them it is 10 hours and 30 minutes.
Why does the Atlanta–IST difference change during the year?
Because Atlanta switches between EST (UTC-5:00) and EDT (UTC-4:00) for daylight saving, while the other side does not move. A converter that assumes one fixed gap will be an hour wrong for roughly half the year.
How many hours a week do Atlanta and IST actually overlap?
None at standard hours. A 9–6 day in Atlanta does not meet a 9–5 day in IST on any day of the week, so a recurring call means one side works early or late — the section above ranks the least disruptive options.
Do public holidays in Atlanta and IST line up?
Barely. Over the next eight weeks the two sides share 40 working days, and 3 of those are a public holiday on one side or the other, leaving 37. The next holiday in IST is Gandhi Jayanti on 2026-10-02. Indian, Gulf and Western holiday calendars are built on different systems, so the days each side loses rarely coincide.
Is Atlanta ahead of IST?
No, it is the other way around: IST is ahead of Atlanta by 9 hours and 30 minutes to 10 hours and 30 minutes.
Converting the other way
Looking up times starting from IST? Use the IST to Atlanta converter, which leads with IST as the starting point and is written for that reader.
Other cities in United States
- IST to New York · United States
- IST to Los Angeles · United States
- IST to Chicago · United States
- IST to Dallas · United States
- IST to Houston · United States
- IST to Washington DC · United States
- IST to Boston · United States
Related converters
- IST to EST · Eastern Time
- IST to CST · Central Time
- IST to PST · Pacific Time
- IST to UTC · Coordinated Universal Time
- IST to GMT · Greenwich Mean Time
- IST to CET · Central European Time
- IST to GST · Gulf Standard Time
- IST to MST · Mountain Time
All cities in United States: IST to United States.