Mumbai

India • India Standard Time

Time Zone

Mumbai uses India Standard Time (IST), currently running at UTC+5:30 (year-round). India does not observe daylight saving time, and the entire country uses a single time zone: IST at UTC+5:30 year-round.

Business & Commerce

Mumbai, India's financial capital, operates on India Standard Time (IST, UTC+5:30) — a single time zone covering the entire Indian subcontinent, with an unusual offset of five and a half hours from UTC. India does not observe daylight saving time, making IST consistently UTC+5:30 every day of the year. This fixed half-hour offset means Mumbai schedules differently from most other major cities: calls that land on the hour elsewhere often fall at a half-hour mark from Mumbai's perspective. The Bombay Stock Exchange (BSE), founded in 1875 and the oldest in Asia, and the National Stock Exchange (NSE) are both headquartered in Mumbai, with trading hours from 9:15 AM to 3:30 PM IST. At UTC+5:30, Mumbai is 5.5 hours ahead of London (GMT) and 10.5 hours ahead of New York (EST) in winter, giving it a useful morning overlap with European business hours.