This paper presents the importance of Nepal Samvat in Nepalese cultural life and compares it with Vikram Samvat, the official calendar of Nepal. Presenting a discussion on eras prevalent in Nepal, this paper examines the significance of the Nepal Government’s recent recognition of Nepal Samvat as the national calendar of Nepal. It presents a historical and cultural overview of the different eras and calendars that are in use in Nepal. It attempts to demonstrate a continuous historical legitimacy of Nepal Samvat, in contrast with Vikram Samvat, which is shown to be a fairly recent imposition associated with the Rana period, from 1903 onward. This article argues against any claims that the implementation of Nepal Samvat as an official calendar is impractical. In addition, I address the following issues: (1) how to adapt a lunar calendar to practical use, (2) how to coordinate it with governmental and business interests, and (3) how to coordinate it with external calendars (e.g. the Common Era or ‘Christian’ calendar)