Mumbai — India's financial capital
Mumbai (Bombay) runs on IST like the rest of India (UTC+5:30, no DST). Mumbai is India's financial capital — the BSE (Bombay Stock Exchange) and NSE (National Stock Exchange) both anchor here. Trading hours 9:15 AM - 3:30 PM IST. The city's business culture skews slightly later than Delhi or Bengaluru — 10 AM office starts are common, with equity traders and derivatives desks operating in the pre-market.