IST to GST Time Converter

Convert India Standard Time (IST) to Gulf Standard Time (GST). Both time zones are shown live below; current offset between them is 1h 30m behind.

Mumbai · India Standard Time
02:25:27
Monday, May 11, 2026
GMT+5:30 · UTC+05:30
Dubai · Gulf Standard Time
00:55:27
Monday, May 11, 2026
GMT+4 · UTC+04:00

Convert a specific time

From: IST (Mumbai)
To: GST (Dubai)
--:--

Daylight Saving status right now

IST (India Standard Time)
Observes DST
No
GST (Gulf Standard Time)
Observes DST
No

When can IST and GST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
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23
IST
GST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Mumbai (IST). Each row shows the local working-hours state in that zone for the same moment in time.
6 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 11:00–16:00 IST (09:30–14:30 GST).

Hour-by-hour IST to GST conversion table

IST time (Mumbai)GST time (Dubai)Status
00:00 Mon22:30 SunOff-hours both sides
01:00 Mon23:30 SunOff-hours both sides
02:00 Mon00:30 MonOff-hours both sides
03:00 Mon01:30 MonOff-hours both sides
04:00 Mon02:30 MonOff-hours both sides
05:00 Mon03:30 MonOff-hours both sides
06:00 Mon04:30 MonOff-hours both sides
07:00 Mon05:30 MonOff-hours both sides
08:00 Mon06:30 MonOff-hours both sides
09:00 Mon07:30 MonIST working
10:00 Mon08:30 MonIST working
11:00 Mon09:30 MonBoth at work
12:00 Mon10:30 MonBoth at work
13:00 Mon11:30 MonBoth at work
14:00 Mon12:30 MonBoth at work
15:00 Mon13:30 MonBoth at work
16:00 Mon14:30 MonBoth at work
17:00 Mon15:30 MonGST working
18:00 Mon16:30 MonGST working
19:00 Mon17:30 MonOff-hours both sides
20:00 Mon18:30 MonOff-hours both sides
21:00 Mon19:30 MonOff-hours both sides
22:00 Mon20:30 MonOff-hours both sides
23:00 Mon21:30 MonOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

India Standard Time (IST)
IANA identifier
Asia/Kolkata
Current UTC offset
UTC+05:30
Current abbreviation
GMT+5:30
Major cities in this zone
MumbaiNew DelhiBangaloreChennaiKolkata
Gulf Standard Time (GST)
IANA identifier
Asia/Dubai
Current UTC offset
UTC+04:00
Current abbreviation
GMT+4
Major cities in this zone
DubaiAbu Dhabi

Sun today in Mumbai and Dubai

Mumbai
Sunrise
06:06
Sunset
19:05
Solar noon
12:36
Daylight
12h 58m
Dubai
Sunrise
05:37
Sunset
18:55
Solar noon
12:16
Daylight
13h 17m

Related converters

GST to IST (reverse)IST to ESTIST to PSTIST to GMTIST to UTCIST to CETEST to GSTPST to GSTGMT to GSTUTC to GSTCET to GST
Looking for local time? See time in Mumbai or time in Dubai.

Frequently asked questions

What is the time difference between IST and GST right now?+
GST (Gulf Standard Time) is currently 1h 30m behind IST (India Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does IST or GST observe daylight saving time?+
IST: does not observe daylight saving time. GST: does not observe daylight saving time.
When is the best time to schedule a meeting between IST and GST?+
The strongest overlap is 11:00–16:00 IST (09:30–14:30 GST), giving 6 hours when both sides are within standard 9am-5pm working hours.
What time is it in Dubai when it is 12:00 noon in Mumbai?+
When it is 12:00 Mon in Mumbai (IST), it is 10:30 Mon in Dubai (GST).
Which IANA time zone identifiers are used for IST and GST?+
IST maps to "Asia/Kolkata" in the IANA database. GST maps to "Asia/Dubai". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Mumbai ahead of or behind Dubai?+
Whether Mumbai (IST) is ahead of or behind Dubai (GST) depends on the current UTC offsets. Right now GST is 1h 30m behind IST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for IST and GST?+
IST is UTC+05:30 (GMT+5:30) and GST is UTC+04:00 (GMT+4). 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.
Can I schedule meetings during business hours for both IST and GST?+
Yes. There are 6 hours of overlap during standard 9am-5pm working hours, with the strongest window at 11:00–16:00 IST.