IST to BST

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.

BST (British Summer Time) is a time zone that is one hour ahead of Coordinated Universal Time (UTC+1). It is used in the United Kingdom during the summer months, from the last Sunday in March to the last Sunday in October.