GST to JST Time Converter
Use this GST to JST time converter to compare UAE and Gulf and Japan time instantly. JST is 5 hours ahead of GST, so 9:00 AM GST becomes 2:00 PM JST and 5:00 PM GST becomes 10:00 PM JST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
GST to JST Quick Facts
Use this GST to JST converter to compare UAE and Gulf and Japan time, check the 5 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM GST / 2:00 PM JST.
How to Convert GST to JST
Converting between Gulf Standard Time and Japan Standard Time means accounting for a 5 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Gulf Standard Time (UTC +4) that you want to convert. Hit "Now" to load the current GST time instantly, or use "+1h" to step forward and compare.
The equivalent Japan Standard Time (UTC +9) time appears immediately. Since JST is 5 hours ahead of GST, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the JST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our GST to JST Converter
When someone in UAE suggests 9:00 AM GST, that's 2:00 PM JST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night GST times can land on a different date in JST because of the 5 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the GST–JST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in GST. Convert the event time to JST so you know exactly when to tune in — with a 5 hours difference, a morning event in UAE falls during work hours in Japan.
GST to JST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Gulf Standard Time to Japan Standard Time full day schedule
| Gulf Standard Time | Japan Standard Time |
|---|---|
| 12:00 AM |
5:00 AM
|
| 1:00 AM |
6:00 AM
|
| 2:00 AM |
7:00 AM
|
| 3:00 AM |
8:00 AM
|
| 4:00 AM |
9:00 AM
|
| 5:00 AM |
10:00 AM
|
| 6:00 AM |
11:00 AM
|
| 7:00 AM |
12:00 PM
|
| 8:00 AM |
1:00 PM
|
| 9:00 AM |
2:00 PM
|
| 10:00 AM |
3:00 PM
|
| 11:00 AM |
4:00 PM
|
| 12:00 PM |
5:00 PM
|
| 1:00 PM |
6:00 PM
|
| 2:00 PM |
7:00 PM
|
| 3:00 PM |
8:00 PM
|
| 4:00 PM |
9:00 PM
|
| 5:00 PM |
10:00 PM
|
| 6:00 PM |
11:00 PM
|
| 7:00 PM |
12:00 AM
(next day)
|
| 8:00 PM |
1:00 AM
(next day)
|
| 9:00 PM |
2:00 AM
(next day)
|
| 10:00 PM |
3:00 AM
(next day)
|
| 11:00 PM |
4:00 AM
(next day)
|
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