Frankfurt to IST
Frankfurt is 3 hours and 30 minutes behind India Standard Time.
Times may vary due to daylight saving time.Quick answer. IST is 4 hours and 30 minutes ahead of Frankfurt for part of the year and 3 hours and 30 minutes ahead for the rest, because Frankfurt observes daylight saving time and the other side does not. The gap is 4 hours and 30 minutes during Frankfurt's standard-time months and 3 hours and 30 minutes during daylight time, so always convert against a specific date.
Time difference
Frankfurt, Germany
CET UTC+1:00 CEST UTC+2:00 Observes DST
Frankfurt and the rest of Germany.
- ↑ March 29, 2026 clocks forward at 3:00 AM · UTC+1:00 → UTC+2:00
- ↓ October 25, 2026 clocks back at 2:00 AM · UTC+2:00 → UTC+1:00
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.
Frankfurt to IST conversion table
Every hour of the day for 2026. Because Frankfurt 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.
| Frankfurt | IST | 24-hour |
|---|---|---|
| 12 AM | 3:30 AM | 03:30 |
| 1 AM | 4:30 AM | 04:30 |
| 2 AM | 5:30 AM | 05:30 |
| 3 AM | 6:30 AM | 06:30 |
| 4 AM | 7:30 AM | 07:30 |
| 5 AM | 8:30 AM | 08:30 |
| 6 AM | 9:30 AM | 09:30 |
| 7 AM | 10:30 AM | 10:30 |
| 8 AM | 11:30 AM | 11:30 |
| 9 AM | 12:30 PM | 12:30 |
| 10 AM | 1:30 PM | 13:30 |
| 11 AM | 2:30 PM | 14:30 |
| 12 PM | 3:30 PM | 15:30 |
| 1 PM | 4:30 PM | 16:30 |
| 2 PM | 5:30 PM | 17:30 |
| 3 PM | 6:30 PM | 18:30 |
| 4 PM | 7:30 PM | 19:30 |
| 5 PM | 8:30 PM | 20:30 |
| 6 PM | 9:30 PM | 21:30 |
| 7 PM | 10:30 PM | 22:30 |
| 8 PM | 11:30 PM | 23:30 |
| 9 PM | 12:30 AM +1 day | 00:30 |
| 10 PM | 1:30 AM +1 day | 01:30 |
| 11 PM | 2:30 AM +1 day | 02:30 |
Highlighted rows are the 5 hours where a 9–6 working day in Frankfurt overlaps a 9–5 working day in IST.
Popular conversion times
| Frankfurt | IST |
|---|---|
| 9 AM Frankfurt | 12:30 PM |
| 10 AM Frankfurt | 1:30 PM |
| 11 AM Frankfurt | 2:30 PM |
| 12 PM Frankfurt | 3:30 PM |
| 3 PM Frankfurt | 6:30 PM |
| 5 PM Frankfurt | 8:30 PM |
| 6 PM Frankfurt | 9:30 PM |
| 8 PM Frankfurt | 11:30 PM |
Business hours and meeting times
Comparing a 9:00–18:00 working day in Frankfurt 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 Frankfurt. Columns are hours of the Frankfurt day.
Best recurring slot
12 PM Frankfurt = 3:30 PM IST , every shared working day
Across the week that is 20 overlapping working hours . The widest day is Monday, with 4 hours.
| Day | Overlap (Frankfurt) | Local (IST) | Hours |
|---|---|---|---|
| Monday | 9 AM – 1 PM | 12:30 PM – 4:30 PM | 4 |
| Tuesday | 9 AM – 1 PM | 12:30 PM – 4:30 PM | 4 |
| Wednesday | 9 AM – 1 PM | 12:30 PM – 4:30 PM | 4 |
| Thursday | 9 AM – 1 PM | 12:30 PM – 4:30 PM | 4 |
| Friday | 9 AM – 1 PM | 12:30 PM – 4:30 PM | 4 |
| Saturday | Frankfurt weekend | — | — |
| Sunday | Frankfurt weekend | — | — |
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. 2are lost to a public holiday on one side or the other, leaving 38.
| Date | Who is off | Holiday |
|---|---|---|
| Friday, October 2, 2026 | India | Gandhi Jayanti |
| Tuesday, October 20, 2026 | India | Dussehra (Vijayadashami) |
Next holidays in Frankfurt
- Sunday, September 20, 2026World Children's Day (Weltkindertag)regionalpublished date
- Saturday, October 3, 2026German Unity Day (Tag der Deutschen Einheit)published date
- Saturday, October 31, 2026Reformation Day (Reformationstag)regionalpublished date
- Sunday, November 1, 2026All Saints' Day (Allerheiligen)regionalpublished date
- Wednesday, November 18, 2026Repentance and Prayer Day (Buß- und Bettag)regionalpublished 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 Frankfurt 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 Frankfurt and IST?
It depends on the date. IST is 4 hours and 30 minutes ahead of Frankfurt in January and 3 hours and 30 minutes ahead in July, because Frankfurt changes clocks for daylight saving time. Use the converter above with the date you actually need.
What time is 9 AM Frankfurt in IST?
9:00 AM Frankfurt is 1:30 PM in IST during IST, and 12:30 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 Frankfurt and IST?
Working days overlap for about 4 hours on a typical Monday: 9 AM to 1 PM Frankfurt, which is 12:30 PM to 4:30 PM in IST. For a recurring invite, 12 PM Frankfurt / 3:30 PM IST is the slot that works on the most days.
Does Frankfurt observe daylight saving time?
Yes. Frankfurt alternates between CET (UTC+1:00) and CEST (UTC+2:00). In 2026, clocks in Frankfurt go forward on March 29, 2026 and back on October 25, 2026. India does not shift at all, so the gap between the two moves twice a year.
When do the clocks change in Frankfurt?
In 2026, clocks in Frankfurt go forward on March 29, 2026 and back on October 25, 2026. Between those dates the gap from India is 3 hours and 30 minutes; outside them it is 4 hours and 30 minutes.
Why does the Frankfurt–IST difference change during the year?
Because Frankfurt switches between CET (UTC+1:00) and CEST (UTC+2:00) 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 Frankfurt and IST actually overlap?
20 hours across the week, spread over 5 working days. 12 PM Frankfurt (3:30 PM IST) is the slot that works on the most days, so it is the one to put in a recurring invite.
Do public holidays in Frankfurt and IST line up?
Barely. Over the next eight weeks the two sides share 40 working days, and 2 of those are a public holiday on one side or the other, leaving 38. 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 Frankfurt ahead of IST?
No, it is the other way around: IST is ahead of Frankfurt by 3 hours and 30 minutes to 4 hours and 30 minutes.
Converting the other way
Looking up times starting from IST? Use the IST to Frankfurt converter, which leads with IST as the starting point and is written for that reader.
Other cities in Germany
- IST to Berlin · Germany
- IST to Munich · Germany
Related converters
- IST to EST · Eastern Time
- IST to CST · Central Time
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- 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 Germany: IST to Germany.