Question 1

What is the time difference between GST and JST right now?

Accepted Answer

Gulf Standard Time (GST) is UTC+4 and Japan Standard Time (JST) is UTC+9. The exact time difference between GST and JST can change when one or both zones transition into or out of daylight saving time.

Question 2

Does GST or JST observe daylight saving time?

Accepted Answer

Daylight saving time observance varies by region. Gulf Standard Time and Japan Standard Time may or may not observe DST. The converter on this page automatically adjusts for any DST changes in either GST or JST.

Question 3

When is the best time to schedule a meeting between GST and JST?

Accepted Answer

The best meeting window between GST and JST is shown on this page in the working-hours overlap section. It is computed from real 9am-5pm working windows in Dubai and Tokyo for today.

Question 4

What time is it in Tokyo when it is 12:00 noon in Dubai?

Accepted Answer

When it is 12:00 PM (noon) in Dubai (GST), the equivalent time in Tokyo (JST) is shown in the hour-by-hour conversion table on this page. The converter accounts for daylight saving time wherever it applies.

Question 5

Which IANA time zone identifiers are used for GST and JST?

Accepted Answer

GST maps to the IANA identifier "Asia/Dubai". JST maps to "Asia/Tokyo". These canonical identifiers are what most software libraries use to convert times accurately, including daylight saving handling.

Question 6

Is Dubai ahead of or behind Tokyo?

Accepted Answer

Whether Dubai (GST) is ahead of or behind Tokyo (JST) depends on the current UTC offsets shown on this page. The live converter and side-by-side clocks above will always reflect the current direction.

Question 7

What are the current UTC offsets for GST and JST?

Accepted Answer

GST is UTC+4 and JST is UTC+9. Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.

Question 8

Can I schedule meetings during business hours for both GST and JST?

Accepted Answer

The "When can GST and JST meet?" section on this page tells you whether the standard 9am-5pm working hours in Dubai and Tokyo overlap, and if so, the exact window you can schedule a meeting without inconveniencing either side.

GST time (Dubai)	JST time (Tokyo)	Status
00:00 Mon	05:00 Mon	Off-hours both sides
01:00 Mon	06:00 Mon	Off-hours both sides
02:00 Mon	07:00 Mon	Off-hours both sides
03:00 Mon	08:00 Mon	Off-hours both sides
04:00 Mon	09:00 Mon	JST working
05:00 Mon	10:00 Mon	JST working
06:00 Mon	11:00 Mon	JST working
07:00 Mon	12:00 Mon	JST working
08:00 Mon	13:00 Mon	JST working
09:00 Mon	14:00 Mon	Both at work
10:00 Mon	15:00 Mon	Both at work
11:00 Mon	16:00 Mon	Both at work
12:00 Mon	17:00 Mon	GST working
13:00 Mon	18:00 Mon	GST working
14:00 Mon	19:00 Mon	GST working
15:00 Mon	20:00 Mon	GST working
16:00 Mon	21:00 Mon	GST working
17:00 Mon	22:00 Mon	Off-hours both sides
18:00 Mon	23:00 Mon	Off-hours both sides
19:00 Mon	00:00 Tue	Off-hours both sides
20:00 Mon	01:00 Tue	Off-hours both sides
21:00 Mon	02:00 Tue	Off-hours both sides
22:00 Mon	03:00 Tue	Off-hours both sides
23:00 Mon	04:00 Tue	Off-hours both sides

GST to JST Time Converter

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Daylight Saving status right now

When can GST and JST meet?

Hour-by-hour GST to JST conversion table

About these time zones

Sun today in Dubai and Tokyo

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