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Convert Gulf Standard Time to India Standard Time

Instantly convert Gulf Standard Time (GST) to India Standard Time (IST) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Gulf Standard Time

09:20:50 AM

Wed, Jun 24 (GST)

India Standard Time

10:50:50 AM

Wed, Jun 24 (IST)

IST is +1.5 hours from GST

Convert a Specific Time

GST

24-Hour Comparison

GSTIST
12:00 AM1.5:00 AM
1:00 AM2.5:00 AM
2:00 AM3.5:00 AM
3:00 AM4.5:00 AM
4:00 AM5.5:00 AM
5:00 AM6.5:00 AM
6:00 AM7.5:00 AM
7:00 AM8.5:00 AM
8:00 AM9.5:00 AM
9:00 AM10.5:00 AM
10:00 AM11.5:00 AM
11:00 AM0.5:00 PM
12:00 PM1.5:00 PM
1:00 PM2.5:00 PM
2:00 PM3.5:00 PM
3:00 PM4.5:00 PM
4:00 PM5.5:00 PM
5:00 PM6.5:00 PM
6:00 PM7.5:00 PM
7:00 PM8.5:00 PM
8:00 PM9.5:00 PM
9:00 PM10.5:00 PM
10:00 PM11.5:00 PM
11:00 PM0.5:00 AM(+1d)

How to Convert Gulf Standard Time to India Standard Time

Formula

To convert Gulf Standard Time (GST) to India Standard Time (IST): Convert GST to IST

About Gulf Standard Time (GST)

Gulf Standard Time (GST, IANA: Asia/Dubai, Asia/Muscat) is the civil time of the Arabian Gulf states, set at UTC+4:00 year-round (no DST). GST serves approximately 60 million people across: United Arab Emirates (UAE), Oman, Azerbaijan, Armenia, Georgia (most), Mauritius, Réunion (French territory), Seychelles, Russia's Samara Time region. The 'Gulf Standard Time' specifically refers to UAE + Oman in regional aviation/business usage. GST shares the same UTC offset as Mauritius Time (MUT), Armenia Time (AMT), Azerbaijan Time (AZT), Georgia Time (GET), and is +1 hour ahead of Moscow / Saudi Arabia. Major GST cities: Dubai (3.5M city, 4.8M metro — UAE + global trade hub), Abu Dhabi (1.5M city, 2.9M metro — UAE capital), Sharjah (1.7M), Muscat Oman (1.7M metro — capital), Salalah Oman (370K), Baku Azerbaijan (2.3M), Yerevan Armenia (1.1M), Tbilisi Georgia (1.2M). Affects: DFM (Dubai Financial Market) + ADX (Abu Dhabi Securities Exchange) trading hours, Emirates Airlines / Etihad Airways hub-operations scheduling, Hajj/Umrah pilgrimage timings for travelers transiting Dubai, Dubai Expo + Burj Khalifa fountain shows + Dubai Mall operating hours.

About India Standard Time (IST)

India Standard Time (IST, IANA: Asia/Kolkata) is the civil time of the Republic of India and Sri Lanka, set at UTC+5:30 — one of the world's most populous 30-minute-offset time zones. India does not observe Daylight Saving Time per the Government of India directive (a brief DST trial in 1942-1945 during WWII was discontinued; subsequent proposals from 2010-2017 were rejected by the Indian Government citing minimal energy savings + agricultural sector disruption). IST is defined as the local mean solar time at 82.5°E longitude (passing through Shankargarh fort in Uttar Pradesh, with the reference clock at the National Physical Laboratory in New Delhi per the Indian Institute of Astrophysics). The 30-minute offset is preserved because India's east-west extent (68°E to 97°E) spans ~28° of longitude — approximately 2 hours of solar time — and the central meridian is most representative for a single unified zone. IST serves approximately 1.4 billion people in India + 22 million in Sri Lanka (Sri Lanka observes SLST = UTC+5:30, identical to IST). Major cities: Mumbai (12.5M), Delhi (16.8M, NCR 29M), Bengaluru (8.4M), Hyderabad (10M), Chennai (7M), Kolkata (4.5M), Ahmedabad (5.5M), Pune (3.1M). Affects: BSE/NSE stock exchanges, IPL Indian Premier League cricket schedules.

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