Heidelberg Time to JST Converter
JST is 8 hours ahead of CET. 9:00 AM CET = 5:00 PM JST.
JST is 8 hours ahead of CET at the moment. To convert Heidelberg Time to JST, add 8 hours to the Heidelberg Time time: 9:00 AM CET = 5:00 PM JST.
Heidelberg Time (Heidelberg time) is used in Heidelberg, Germany. JST (Japan Time) is used in Japan.
Heidelberg Time to JST time conversion table
Heidelberg Time to JST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Heidelberg Time | JST | Day |
|---|---|---|
| 12:00 AM CET | 8:00 AM JST | — |
| 1:00 AM CET | 9:00 AM JST | — |
| 2:00 AM CET | 10:00 AM JST | — |
| 3:00 AM CET | 11:00 AM JST | — |
| 4:00 AM CET | 12:00 PM JST | — |
| 5:00 AM CET | 1:00 PM JST | — |
| 6:00 AM CET | 2:00 PM JST | — |
| 7:00 AM CET | 3:00 PM JST | — |
| 8:00 AM CET | 4:00 PM JST | — |
| 9:00 AM CET | 5:00 PM JST | — |
| 10:00 AM CET | 6:00 PM JST | — |
| 11:00 AM CET | 7:00 PM JST | — |
| 12:00 PM CET | 8:00 PM JST | — |
| 1:00 PM CET | 9:00 PM JST | — |
| 2:00 PM CET | 10:00 PM JST | night |
| 3:00 PM CET | 11:00 PM JST | night |
| 4:00 PM CET | 12:00 AM JST | next day |
| 5:00 PM CET | 1:00 AM JST | next day |
| 6:00 PM CET | 2:00 AM JST | next day |
| 7:00 PM CET | 3:00 AM JST | next day |
| 8:00 PM CET | 4:00 AM JST | next day |
| 9:00 PM CET | 5:00 AM JST | next day |
| 10:00 PM CET | 6:00 AM JST | next day |
| 11:00 PM CET | 7:00 AM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Heidelberg Time to JST
Add 8 hours to the Heidelberg Time time to get JST.
Example: 9:00 AM CET = 5:00 PM JST.
Across midnight: 10:00 PM CET = 6:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between Heidelberg Time and JST
The time difference between Heidelberg Time and JST 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: JST is 8 hours ahead of Heidelberg Time.
- 29 Mar 2026 – 24 Oct 2026: JST is 7 hours ahead of Heidelberg Time.
- 25 Oct 2026 – 31 Dec 2026: JST is 8 hours ahead of Heidelberg Time.
Heidelberg Time and JST during daylight saving time
- Heidelberg 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).
- JST does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between Heidelberg Time and JST
Heidelberg Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM CET, which is 3:00 PM JST.
Heidelberg Time to JST FAQ
What is the time difference between Heidelberg Time and JST?
Right now JST is 8 hours ahead of CET. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Heidelberg Time in JST?
9:00 AM CET is 5:00 PM JST.
What is 12 PM (noon) Heidelberg Time in JST?
12:00 PM CET is 8:00 PM JST.
Is JST ahead of or behind Heidelberg Time?
JST is 8 hours ahead of CET, so it is later in JST than in Heidelberg Time.
Does Heidelberg Time change for daylight saving time?
Yes. Heidelberg Time next changes on 28 Mar 2027, when clocks go forward one hour from CET to CEST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Heidelberg Time and JST?
Heidelberg Time and JST have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM CET, which is 3:00 PM JST.
Related conversions
Convert JST to Heidelberg Time
Convert Heidelberg Time to other time zones
Convert other time zones to JST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.