Set your meeting for 10:00 in Yokohama and it appears at 09:00 on every Shanghai calendar, every single day. The two cities sit one time zone apart: Yokohama on Japan Standard Time (JST, UTC+9), Shanghai on China Standard Time (CST, UTC+8). Neither city moves its clocks. Not in spring, not in autumn, not ever.
Why Yokohama is always 1 hour ahead of Shanghai
JST runs at UTC+9. CST runs at UTC+8. Subtract one hour from Yokohama to get Shanghai time. Add one hour to Shanghai to get Yokohama time. The direction is fixed.
Book a call from Yokohama to Shanghai during Shanghai’s working day: aim for 09:00 to 17:00 JST, which lands at 08:00 to 16:00 CST. Book from Shanghai to Yokohama: your 09:00 to 17:00 CST hits 10:00 to 18:00 JST. That stretches to the end of Yokohama’s core hours but still works.
Does the Yokohama-Shanghai time difference change for daylight saving?
No. Japan abolished daylight saving time in 1951 and has never reinstated it. China ended DST in 1991. The 1-hour gap between Yokohama and Shanghai is permanent. When London springs forward or New York falls back, nothing shifts here. Check any date, any month: the conversion stays identical.
What is the best time for a call between Yokohama and Shanghai?
The full workday overlaps. Use it.
- Schedule a morning check-in at Yokohama 09:00 / Shanghai 08:00. Both sides are at their desks.
- Book a midday sync at Yokohama 12:00 / Shanghai 11:00. Quick, before lunch in Shanghai.
- Hold a wrap-up at Yokohama 16:00 / Shanghai 15:00. Late afternoon in both cities.
- Push a final call to Yokohama 18:00 / Shanghai 17:00. Tight for Shanghai but feasible.
Skip early Yokohama mornings if you are in Shanghai. An 08:00 JST call means 07:00 CST, before most Shanghai offices open. Skip late Shanghai afternoons if you are in Yokohama. A 17:00 CST request forces Yokohama to dial in at 18:00 JST.
Yokohama to Shanghai time conversion chart
| Yokohama (JST) | Shanghai (CST) |
|---|---|
| 07:00 | 06:00 |
| 08:00 | 07:00 |
| 09:00 | 08:00 |
| 10:00 | 09:00 |
| 11:00 | 10:00 |
| 12:00 | 11:00 |
| 13:00 | 12:00 |
| 14:00 | 13:00 |
| 15:00 | 14:00 |
| 16:00 | 15:00 |
| 17:00 | 16:00 |
| 18:00 | 17:00 |
| 19:00 | 18:00 |
| 20:00 | 19:00 |
| 21:00 | 20:00 |
| 22:00 | 21:00 |
Pin it. For every deadline, flight booking, or video call: Yokohama time minus one hour equals Shanghai time. No clock changes, no exceptions.