Convert Coordinated Universal Time to India Standard Time
Instantly convert Coordinated Universal Time (UTC) to India Standard Time (IST) with our free online calculator.
Coordinated Universal Time
05:20:49 AM
Wed, Jun 24 (UTC)
India Standard Time
10:50:49 AM
Wed, Jun 24 (IST)
Convert a Specific Time
24-Hour Comparison
| UTC | IST |
|---|---|
| 12:00 AM | 5.5:00 AM |
| 1:00 AM | 6.5:00 AM |
| 2:00 AM | 7.5:00 AM |
| 3:00 AM | 8.5:00 AM |
| 4:00 AM | 9.5:00 AM |
| 5:00 AM | 10.5:00 AM |
| 6:00 AM | 11.5:00 AM |
| 7:00 AM | 0.5:00 PM |
| 8:00 AM | 1.5:00 PM |
| 9:00 AM | 2.5:00 PM |
| 10:00 AM | 3.5:00 PM |
| 11:00 AM | 4.5:00 PM |
| 12:00 PM | 5.5:00 PM |
| 1:00 PM | 6.5:00 PM |
| 2:00 PM | 7.5:00 PM |
| 3:00 PM | 8.5:00 PM |
| 4:00 PM | 9.5:00 PM |
| 5:00 PM | 10.5:00 PM |
| 6:00 PM | 11.5:00 PM |
| 7:00 PM | 0.5:00 AM(+1d) |
| 8:00 PM | 1.5:00 AM(+1d) |
| 9:00 PM | 2.5:00 AM(+1d) |
| 10:00 PM | 3.5:00 AM(+1d) |
| 11:00 PM | 4.5:00 AM(+1d) |
How to Convert Coordinated Universal Time to India Standard Time
Formula
To convert Coordinated Universal Time (UTC) to India Standard Time (IST): Convert UTC to IST
About Coordinated Universal Time (UTC)
Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time, defined since 1972 as the time at the Prime Meridian (0° longitude) maintained by BIPM (Bureau International des Poids et Mesures) in Sèvres, France. UTC is computed as a weighted average of approximately 400 atomic clocks at ~80 national metrology institutes (NIST in the US, NPL in UK, PTB in Germany, NICT in Japan, KRISS in Korea, etc.) per the formal definition in ITU-R Recommendation TF.460-6 (2002). UTC is functionally identical to GMT (Greenwich Mean Time) for civil purposes but differs slightly in its underlying timescale — UTC uses atomic seconds with occasional leap seconds inserted (announced by IERS Bulletin C ~6 months in advance, last leap second was December 31, 2016, and the system may be retired by 2035 per Resolution D of CGPM 2022). UTC is the standard for aviation (ICAO Annex 5), maritime navigation (IMO COLREGS), all internet protocols (NTP, PTP per IEEE 1588), all scientific publications, GPS / Galileo / GLONASS / BeiDou GNSS, and Universal Time on Wikipedia/Wikidata.
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.