IST to GST Time Converter

Convert Indian Standard Time to Gulf Standard Time - Quick & Accurate

Mumbai (IST)
Dubai (GST)
GST is 1 hour 30 minutes behind IST

Quick Time Conversion

Mumbai
Indian Standard Time
UTC+5:30
Dubai
Gulf Standard Time
UTC+4

Current Time Right Now

Indian Standard Time (IST)
Gulf Standard Time (GST)

Updates live every second

24-Hour Visual Comparison

IST (Mumbai)
12am IST
1am IST
2am IST
3am IST
4am IST
5am IST
6am IST
7am IST
8am IST
9am IST
10am IST
11am IST
12pm IST
1pm IST
2pm IST
3pm IST
4pm IST
5pm IST
6pm IST
7pm IST
8pm IST
9pm IST
10pm IST
11pm IST
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GST (Dubai)
10:00pm GST
11:00pm GST
12:30am GST
1:30am GST
2:30am GST
3:30am GST
4:30am GST
5:30am GST
6:30am GST
7:30am GST
8:30am GST
9:30am GST
10:30am GST
11:30am GST
12:30pm GST
1:30pm GST
2:30pm GST
3:30pm GST
4:30pm GST
5:30pm GST
6:30pm GST
7:30pm GST
8:30pm GST
9:30pm GST
10:30p4:30a10:30a4:30p10:30p
Business Hours (9AM-5PM)
Evening (5PM-9PM)
Night (9PM-6AM)

Hover over any hour to see corresponding time in both zones

Best Time for Meeting/Call

To schedule a meeting between IST and GST:

Best Window (IST)
8:30 AM - 5:00 PM
Which is (GST)
7:00 AM - 3:30 PM
Both parties in business hours
8.5-hour overlap window
Ideal for India-UAE collaboration

Pro Tip: Schedule calls between 10:00 AM - 3:00 PM IST for optimal overlap with GST business hours

Complete IST to GST Conversion Table

IST TimeGST TimeContext
12:00 AM10:30 PM
Midnight India
01:00 AM11:30 PM
Late Night
02:00 AM12:30 AM
Late Night
03:00 AM01:30 AM
Late Night
04:00 AM02:30 AM
Late Night
05:00 AM03:30 AM
Late Night
06:00 AM04:30 AM
Early Morning IST
07:00 AM05:30 AM
Night Time
08:00 AM06:30 AM
Work Starts IST
09:00 AM07:30 AM
Work Starts IST
10:00 AM08:30 AM
Meeting Window
11:00 AM09:30 AM
Meeting Window

Indian Standard Time (IST)

UTC+5:30
No DST observed
Major Cities:
  • • Mumbai
  • • Delhi
  • • Bangalore
  • • Kolkata
  • • Chennai
Daylight Saving:

Not observed

IANA Identifier:

Asia/Kolkata

Gulf Standard Time (GST)

UTC+4
No DST observed
Major Cities:
  • • Dubai
  • • Abu Dhabi
  • • Sharjah
Daylight Saving:

Not observed

IANA Identifier:

Asia/Dubai

Indian Standard Time (IST) vs Gulf Standard Time (GST)

Indian Standard Time (IST)Gulf Standard Time (GST)

Indian Standard Time (IST) is 5 hours and 30 minutes ahead of Coordinated Universal Time (UTC+5:30). India does not observe Daylight Saving Time, maintaining the same offset year-round.

Gulf Standard Time (GST) is 4 hours ahead of Coordinated Universal Time (UTC+4). The UAE does not observe Daylight Saving Time, keeping a consistent offset throughout the year.

Where Is It Used?

  • India: Entire country uses IST
  • Major Cities: Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad, Pune, Ahmedabad
  • Coverage: Single time zone for entire nation
  • United Arab Emirates: Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah
  • Oman: Muscat
  • Also used in: Parts of the Arabian Peninsula

Key Facts

  • UTC Offset: UTC+5:30
  • Region: South Asia
  • Known For: Major IT and business hubs
  • Population: Over 1.4 billion people
  • Daylight Saving: Not observed
  • Unique: Uses 30-minute offset from UTC
  • UTC Offset: UTC+4
  • Region: Middle East / Arabian Peninsula
  • Known For: Major trade and business centers
  • Largest Cities: Dubai (3.3M), Abu Dhabi (1.5M)
  • Daylight Saving: Not observed
  • Economy: Major financial and commercial hub

Quick Reference

Time Difference: GST is 1 hour 30 minutes behind IST year-round
Consistency: This difference remains constant as neither observes DST
Distance: Approximately 1,200 miles between Mumbai and Dubai
UTC Offsets: IST = UTC+5:30, GST = UTC+4

Frequently Asked Questions

GST (Gulf Standard Time) is 1 hour and 30 minutes behind IST (Indian Standard Time). This means when it's 12:00 PM in Mumbai (IST), it's 10:30 AM in Dubai (GST).

The best time to call from IST to GST is between 8:30 AM and 5:00 PM IST, which corresponds to 7:00 AM to 3:30 PM GST. This ensures both parties are within standard business hours.

No, the time difference remains constant at 1 hour 30 minutes. India does not observe Daylight Saving Time, and the UAE also does not observe DST, so the offset stays consistent year-round.

IST cities include Mumbai, Delhi, Bangalore, Kolkata, and Chennai. GST cities include Dubai, Abu Dhabi, and Sharjah in the United Arab Emirates.

India uses UTC+5:30, which is a 30-minute offset from standard hour-based time zones. This was chosen to provide a single time zone for the entire country while being close to the mean solar time of India's geographic center.