Time in Shanghai vs Guelma
Shanghai keeps CST (UTC+8) and Guelma keeps CET (UTC+1) today. Guelma is 7 hours behind Shanghai; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 09:00–11:00 in Guelma (16:00–18:00 your time).
| City | 00:00 in Shanghai | 01:00 in Shanghai | 02:00 in Shanghai | 03:00 in Shanghai | 04:00 in Shanghai | 05:00 in Shanghai | 06:00 in Shanghai | 07:00 in Shanghai | 08:00 in Shanghai | 09:00 in Shanghai | 10:00 in Shanghai | 11:00 in Shanghai | 12:00 in Shanghai | 13:00 in Shanghai | 14:00 in Shanghai | 15:00 in Shanghai | 16:00 in Shanghai | 17:00 in Shanghai | 18:00 in Shanghai | 19:00 in Shanghai | 20:00 in Shanghai | 21:00 in Shanghai | 22:00 in Shanghai | 23:00 in Shanghai |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shanghai—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Guelma—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Shanghai and Guelma
Best hours to call
16:00 in Shanghai
Inside working hours on both sides
09:00 in Guelma
17:00 in Shanghai
Inside working hours on both sides
10:00 in Guelma
Where daylight saving pulls them apart
Neither Shanghai nor Guelma changes its clocks, so the gap above holds all year.
Also useful
Common questions
How many hours ahead is Guelma of Shanghai?
Guelma is 7 hours behind Shanghai right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Shanghai and Guelma?
Any hour in 16:00–18:00 Shanghai time is inside working hours in both cities.
Do Shanghai and Guelma change clocks on the same date?
Neither city changes its clocks, so the gap between them never moves.