Yokohama vs Dubai Time Difference: key details
A call booked for 14:00 Yokohama time in January stays at 09:00 Dubai time in July. The gap never moves. Yokohama runs on Japan Standard Time (UTC+9), Dubai on Gulf Standard Time (UTC+4). Subtract and you get five hours, every day of the year.
Current Time Difference at a Glance
Yokohama is always five hours ahead of Dubai. When it is noon in Yokohama, it is 07:00 in Dubai. When Dubai hits midnight, Yokohama is already at 05:00.
JST (UTC+9) vs GST (UTC+4): 5-Hour Difference
Japan Standard Time sits at UTC+9. Gulf Standard Time sits at UTC+4. The gap is a clean five hours. No fractions, no half-hour offsets.
No DST in Either City: Constant Offset
Neither Japan nor the United Arab Emirates observes daylight saving time. That single fact eliminates the twice-yearly shuffle you face with London, New York, or Sydney. The offset is permanent.
Best Overlap Hours for Calls and Meetings
Schedule calls in this window and nothing else.
Book between Yokohama 13:00 and 16:00. That is Dubai 08:00 to 11:00.
A Yokohama contact returning from lunch at 13:00 catches a Dubai colleague who just started the day. By 16:00 Yokohama time (11:00 in Dubai), the Dubai morning is finished. Calls after that land in lunch or a sluggish early afternoon. Skip them.
If you are in Dubai, block 08:00 to 11:00 on your calendar. That covers Yokohama’s entire 13:00 to 16:00 slot.
Quick Conversion Table
| Yokohama (JST) | Dubai (GST) |
|---|---|
| 06:00 | 01:00 |
| 09:00 | 04:00 |
| 12:00 | 07:00 |
| 13:00 | 08:00 |
| 14:00 | 09:00 |
| 15:00 | 10:00 |
| 16:00 | 11:00 |
| 18:00 | 13:00 |
| 21:00 | 16:00 |
| 00:00 | 19:00 |
Bold rows are the only ones you should book. To convert any hour: add five to Dubai time for Yokohama time, subtract five from Yokohama time for Dubai time.
For calling windows from other regions, see Best Times to Call Yokohama.
The next scheduling hazard is not a clock change. It is Japan’s public holidays. Golden Week (late April to early May 2026) shuts many Yokohama offices. Check Japan's 2026 holiday dates before you send the invite. The time difference stays constant. The working calendar does not.