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Time zonesLive · DST-aware

GST to JST Converter

See the current time in GST (Dubai) and JST (Tokyo) side by side, the exact time difference right now, and convert any time between the two zones.

Quick presets

GST to JST Converter

GST
Dubai
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JST
Tokyo
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Uses your browser's built-in, DST-aware time-zone data.

ToolFeather · Intl API

About converting GST to JST

Gulf Time (Dubai) (Dubai) and Japan Standard Time (Tokyo) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.

To plan across the two, type a time into the GST box (or tap a quick preset) and read the JST equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.

GST vs JST: the time difference through the year

The difference stays the same all year: JST is 5 h ahead of GST.

PeriodDifference
Oct 23, 2026 – Oct 23, 2027JST 5 h ahead of GST

Daylight saving

Neither GST nor JST uses daylight saving, so this conversion never changes.

GST to JST conversion table

GSTJST
12:00 AM5:00 AM
1:00 AM6:00 AM
2:00 AM7:00 AM
3:00 AM8:00 AM
4:00 AM9:00 AM
5:00 AM10:00 AM
6:00 AM11:00 AM
7:00 AM12:00 PM
8:00 AM1:00 PM
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM
12:00 PM5:00 PM
1:00 PM6:00 PM
2:00 PM7:00 PM
3:00 PM8:00 PM
4:00 PM9:00 PM
5:00 PM10:00 PM
6:00 PM11:00 PM
7:00 PM12:00 AM (next day)
8:00 PM1:00 AM (next day)
9:00 PM2:00 AM (next day)
10:00 PM3:00 AM (next day)
11:00 PM4:00 AM (next day)

Best time to meet

The two zones

GST · Gulf Time (Dubai)

Gulf Standard Time is UTC+4 all year, used in the UAE (Dubai, Abu Dhabi) and Oman. There is no daylight saving.

JST · Japan Standard Time

Japan Standard Time is UTC+9 all year. Japan has not used daylight saving since 1951.

Frequently asked questions

6 answers
What is the time difference between GST and JST?
It's shown live at the top of this page (and it can change with daylight saving). The converter uses the current, DST-aware difference between Gulf Time (Dubai) and Japan Standard Time, so the time you see is always right for right now.
How do I convert GST to JST?
Enter a time in the GST box and the equivalent JST time appears instantly, adjusted for the current offset between the two zones — including a note if it lands on the previous or next day.
Is this GST to JST converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind Dubai and Tokyo), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in Tokyo right now?
The live clock above shows the current time in Tokyo (JST), updating every second, alongside GST.
Does the GST to JST time difference change?
No. Neither switch changes the gap: JST is 5 h ahead of GST all year.
What is a good meeting time for GST and JST?
Office hours overlap from 9:00 AM to 12:00 PM GST (2:00 PM to 5:00 PM JST).