The timekeepers of the nation are based at Delhi’s National Physical Laboratory, which holds the mandate to develop standards of measurement, including, among others, time. The latest episode of The Intersection, recorded in the Lab, explores the origins of Indian Standard Time. It also delves into a long-standing debate – why should a large country as large as India have only a single time zone?

This is the latest episode of The Intersection, a fortnightly podcast on Audiomatic. For more such podcasts visit