IST to Dortmund Time Converter
CET is 4 hours 30 minutes behind IST. 9:00 AM IST = 4:30 AM CET.
CET is 4 hours 30 minutes behind IST at the moment. To convert IST to Dortmund Time, subtract 4 hours 30 minutes from the IST time: 9:00 AM IST = 4:30 AM CET.
IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time). Dortmund Time (Dortmund time) is used in Dortmund, Germany.
IST here means India Standard Time, not Irish or Israel Standard Time.
IST to Dortmund Time time conversion table
IST to Dortmund Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| IST | Dortmund Time |
|---|---|
| 12:00 AM | 7:30 PM−1 |
| 1:00 AM | 8:30 PM−1 |
| 2:00 AM | 9:30 PM−1 |
| 3:00 AM | 10:30 PM−1 |
| 4:00 AM | 11:30 PM−1 |
| 5:00 AM | 12:30 AM |
| 6:00 AM | 1:30 AM |
| 7:00 AM | 2:30 AM |
| IST | Dortmund Time |
|---|---|
| 8:00 AM | 3:30 AM |
| 9:00 AM | 4:30 AM |
| 10:00 AM | 5:30 AM |
| 11:00 AM | 6:30 AM |
| 12:00 PM | 7:30 AM |
| 1:00 PM | 8:30 AM |
| 2:00 PM | 9:30 AM |
| 3:00 PM | 10:30 AM |
| IST | Dortmund Time |
|---|---|
| 4:00 PM | 11:30 AM |
| 5:00 PM | 12:30 PM |
| 6:00 PM | 1:30 PM |
| 7:00 PM | 2:30 PM |
| 8:00 PM | 3:30 PM |
| 9:00 PM | 4:30 PM |
| 10:00 PM | 5:30 PM |
| 11:00 PM | 6:30 PM |
Conversion table from IST to Dortmund Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in Dortmund Time, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert IST to Dortmund Time
Subtract 4 hours 30 minutes from the IST time to get Dortmund Time.
Example: 9:00 AM IST = 4:30 AM CET.
Across midnight: 1:00 AM IST = 8:30 PM CET (previous day). The date changes, so always check the day as well as the hour.
Time difference between IST and Dortmund Time
The time difference between IST and Dortmund Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: Dortmund Time is 4 hours 30 minutes behind of IST.
- 29 Mar 2026 – 24 Oct 2026: Dortmund Time is 3 hours 30 minutes behind of IST.
- 25 Oct 2026 – 31 Dec 2026: Dortmund Time is 4 hours 30 minutes behind of IST.
IST and Dortmund Time during daylight saving time
- IST does not observe daylight saving time; it stays on UTC+5:30 all year.
- Dortmund Time next changes on 28 Mar 2027: clocks go forward one hour at 01:59 local time, from CET (UTC+1) to CEST (UTC+2).
Best time for a meeting between IST and Dortmund Time
IST and Dortmund Time share 3 hours 30 minutes of the 9 AM–5 PM working day. Any time between 1:30 PM and 5:00 PM IST lands between 9:00 AM and 12:30 PM CET, inside working hours for both.
IST to Dortmund Time FAQ
What is the time difference between IST and Dortmund Time?
Right now CET is 4 hours 30 minutes behind IST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM IST in Dortmund Time?
9:00 AM IST is 4:30 AM CET.
What is 12 PM (noon) IST in Dortmund Time?
12:00 PM IST is 7:30 AM CET.
Is Dortmund Time ahead of or behind IST?
CET is 4 hours 30 minutes behind IST, so it is earlier in Dortmund Time than in IST.
Does IST change for daylight saving time?
No. IST stays on the same offset all year, so conversions never shift for daylight saving time.
Does Dortmund Time change for daylight saving time?
Yes. Dortmund Time next changes on 28 Mar 2027, when clocks go forward one hour from CET to CEST.
What is the best time for a meeting between IST and Dortmund Time?
IST and Dortmund Time share 3 hours 30 minutes of the 9 AM–5 PM working day. Any time between 1:30 PM and 5:00 PM IST lands between 9:00 AM and 12:30 PM CET, inside working hours for both.
Related conversions
Convert Dortmund Time to IST
Convert IST to other time zones
Convert other time zones to Dortmund Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.