Semarang to CET time conversion
CET is 6 hours behind Semarang.
CET is always UTC+1. Right now most places that use CET are on CEST (UTC+2): CEST is 5 hours behind Semarang.
Time difference with your location
Semarang is 7 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in Semarang to convert it to CET on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · Semarang → CET
This table converts each hour in Semarang to CET on 2026-10-21.
- Working hours
- Outside working hours
- Night hours
| Semarang | CET | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 18:006:00 PM -1 day | |
| 01:001:00 AM | 19:007:00 PM -1 day | |
| 02:002:00 AM | 20:008:00 PM -1 day | |
| 03:003:00 AM | 21:009:00 PM -1 day | |
| 04:004:00 AM | 22:0010:00 PM -1 day | |
| 05:005:00 AM | 23:0011:00 PM -1 day | |
| 06:006:00 AM | 00:0012:00 AM | |
| 07:007:00 AM | 01:001:00 AM | |
| 08:008:00 AM | 02:002:00 AM | |
| 09:009:00 AM | 03:003:00 AM | |
| 10:0010:00 AM | 04:004:00 AM | |
| 11:0011:00 AM | 05:005:00 AM | |
| 12:0012:00 PM | 06:006:00 AM | |
| 13:001:00 PM | 07:007:00 AM | |
| 14:002:00 PM | 08:008:00 AM | ✓ |
| 15:003:00 PM | 09:009:00 AM | ✓ |
| 16:004:00 PM | 10:0010:00 AM | ✓ |
| 17:005:00 PM | 11:0011:00 AM | ✓ |
| 18:006:00 PM | 12:0012:00 PM | |
| 19:007:00 PM | 13:001:00 PM | |
| 20:008:00 PM | 14:002:00 PM | |
| 21:009:00 PM | 15:003:00 PM | |
| 22:0010:00 PM | 16:004:00 PM | |
| 23:0011:00 PM | 17:005:00 PM |
Quick conversion examples
These examples use Semarang (UTC+7) and CET (UTC+1); choosing a date applies the local clock changes.
Conversion formula: CET = Semarang − 6h · CEST = Semarang − 5h.
| Semarang | CET |
|---|---|
| 6:00 AM Semarang | = 12:00 AM CET |
| 7:00 AM Semarang | = 1:00 AM CET |
| 8:00 AM Semarang | = 2:00 AM CET |
| 9:00 AM Semarang | = 3:00 AM CET |
| 10:00 AM Semarang | = 4:00 AM CET |
| 12:00 PM Semarang | = 6:00 AM CET |
| 3:00 PM Semarang | = 9:00 AM CET |
| 5:00 PM Semarang | = 11:00 AM CET |
| 6:00 PM Semarang | = 12:00 PM CET |
| 8:00 PM Semarang | = 2:00 PM CET |
Overlapping meeting hours
The 08:00–18:00 working day in Semarang and CET overlaps for 4 hours on 2026-10-21.
- Shared working hours
- 14:00–18:00 Semarang · 08:00–12:00 CET
Clock changes on both sides, 2026–2028
Semarang and CET have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | Semarang | CET |
|---|---|---|
| 2026 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 03:00 → 02:00 |
| 2027 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 03:00 → 02:00 |
| 2028 | No clock changes; UTC+7 all year. | · 02:00 → 03:00 · 03:00 → 02:00 |
At the start of 2026, CET is 6 hours behind Semarang. The difference changes during the following periods.
- From 2026-03-29 08:00 Semarang until 2026-10-25 08:00 Semarang, CEST is 5 hours behind Semarang.
- From 2027-03-28 08:00 Semarang until 2027-10-31 08:00 Semarang, CEST is 5 hours behind Semarang.
- From 2028-03-26 08:00 Semarang until 2028-10-29 08:00 Semarang, CEST is 5 hours behind Semarang.
Frequently asked questions
What time is 9 AM Semarang in CET?
9:00 AM Semarang = 3:00 AM CET, using UTC+7 and UTC+1. Choose a date above for the seasonal local time.
Does the time difference between Semarang and CET change during the year?
Yes. During 2026–2028: CET is 6 hours behind Semarang; CET is 5 hours behind Semarang. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in CET?
Read the CET clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between Semarang and CET?
The shared 08:00–18:00 working window is 14:00–18:00 Semarang / 08:00–12:00 CET, a total of 4 hours.
What is the time difference between Semarang and CET now?
Right now, CET is 6 hours behind Semarang. Conversion formula: CET = Semarang − 6h · CEST = Semarang − 5h.