UTC+5:30 is an identifier for a time offset from UTC of +05:30. This time is used in India and Sri Lanka, and was formerly used in Nepal. It is five and a half hours ahead of Coordinated Universal Time. Around 1.4 billion people live inside this time zone, making it the second-most populous after UTC+08:00. As standard time (year-round) Principal cities: , Mumbai, Chennai, Kolkata, Ahmedabad, Bangalore, Hyderabad, Colombo South Asia India – Indian Standard Time Sri Lanka – Sri Lanka Standard Time See also Indian Standard Time Sri Lanka Standard Time Time in India Time in Sri Lanka References UTC offsets Time in India Time in Sri Lanka