GMT to Yokohama Time Converter
JST is 9 hours ahead of GMT. 9:00 AM GMT = 6:00 PM JST.
JST is 9 hours ahead of GMT. To convert GMT to Yokohama Time, add 9 hours to the GMT time: 9:00 AM GMT = 6:00 PM JST.
GMT (GMT) is used in Same offset as UTC. The UK and Ireland use GMT in winter; Iceland, Ghana and Senegal all year. Yokohama Time (Yokohama time) is used in Yokohama, Japan.
The UK is on GMT only in winter; in summer it uses BST (UTC+1).
GMT to Yokohama Time time conversion table
GMT to Yokohama Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| GMT | Yokohama Time | Day |
|---|---|---|
| 12:00 AM GMT | 9:00 AM JST | — |
| 1:00 AM GMT | 10:00 AM JST | — |
| 2:00 AM GMT | 11:00 AM JST | — |
| 3:00 AM GMT | 12:00 PM JST | — |
| 4:00 AM GMT | 1:00 PM JST | — |
| 5:00 AM GMT | 2:00 PM JST | — |
| 6:00 AM GMT | 3:00 PM JST | — |
| 7:00 AM GMT | 4:00 PM JST | — |
| 8:00 AM GMT | 5:00 PM JST | — |
| 9:00 AM GMT | 6:00 PM JST | — |
| 10:00 AM GMT | 7:00 PM JST | — |
| 11:00 AM GMT | 8:00 PM JST | — |
| 12:00 PM GMT | 9:00 PM JST | — |
| 1:00 PM GMT | 10:00 PM JST | night |
| 2:00 PM GMT | 11:00 PM JST | night |
| 3:00 PM GMT | 12:00 AM JST | next day |
| 4:00 PM GMT | 1:00 AM JST | next day |
| 5:00 PM GMT | 2:00 AM JST | next day |
| 6:00 PM GMT | 3:00 AM JST | next day |
| 7:00 PM GMT | 4:00 AM JST | next day |
| 8:00 PM GMT | 5:00 AM JST | next day |
| 9:00 PM GMT | 6:00 AM JST | next day |
| 10:00 PM GMT | 7:00 AM JST | next day |
| 11:00 PM GMT | 8:00 AM JST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert GMT to Yokohama Time
Add 9 hours to the GMT time to get Yokohama Time.
Example: 9:00 AM GMT = 6:00 PM JST.
Across midnight: 10:00 PM GMT = 7:00 AM JST (next day). The date changes, so always check the day as well as the hour.
Time difference between GMT and Yokohama Time
The time difference between GMT and Yokohama Time is 9 hours all year – JST is ahead of GMT.
GMT and Yokohama Time during daylight saving time
- GMT does not observe daylight saving time; it stays on UTC+0 all year.
- Yokohama Time does not observe daylight saving time; it stays on UTC+9 all year.
Best time for a meeting between GMT and Yokohama Time
GMT and Yokohama Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM JST.
GMT to Yokohama Time FAQ
What is the time difference between GMT and Yokohama Time?
JST is 9 hours ahead of GMT all year. 9:00 AM GMT = 6:00 PM JST.
What is 9 AM GMT in Yokohama Time?
9:00 AM GMT is 6:00 PM JST.
What is 12 PM (noon) GMT in Yokohama Time?
12:00 PM GMT is 9:00 PM JST.
Is Yokohama Time ahead of or behind GMT?
JST is 9 hours ahead of GMT, so it is later in Yokohama Time than in GMT.
Does GMT change for daylight saving time?
No. GMT stays on the same offset all year, so conversions never shift for daylight saving time.
Does Yokohama Time change for daylight saving time?
No. Yokohama Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between GMT and Yokohama Time?
GMT and Yokohama Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM GMT, which is 4:00 PM JST.
Related conversions
Convert Yokohama Time to GMT
Convert GMT to other time zones
Convert other time zones to Yokohama Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.