IST to GMT

Indian Standard Time (IST) is the time zone used in India. It is five and a half hours ahead of Coordinated Universal Time (UTC+5:30). IST is used in the entire country of India and is the only time zone used in the country.

Greenwich Mean Time (GMT) is a time zone that is often used as a standard time reference for the world. It is based on the line of longitude that passes through the Royal Observatory in Greenwich, London, UK, which is at 0 degrees longitude.