How to Convert BS to AD Date: Complete Guide
Converting between Bikram Sambat (BS) and Anno Domini (AD) dates is a common need in Nepal, whether for official documents, travel bookings, or international communication.
Understanding the Difference
The Bikram Sambat calendar is approximately 56 years and 8.5 months ahead of the Gregorian (AD) calendar. For example:
- 2080 Baishakh 1 BS = April 14, 2023 AD
- 2081 Baishakh 1 BS = April 13, 2024 AD
Quick Conversion Formula
While not perfectly accurate due to varying month lengths, a rough conversion is:
- BS to AD: Subtract approximately 56 years and 8-9 months
- AD to BS: Add approximately 56 years and 8-9 months
For exact conversions, use our Date Converter Tool which accounts for the exact day-by-day mapping between the two calendars.
Common Use Cases
- Government documents: Birth certificates, citizenship, and passports often need both dates
- Banking: International transactions may require AD dates
- Education: Foreign university applications need AD date of birth
- Travel: Passport and visa applications require AD dates
- Business: International contracts and agreements use AD dates
Important Notes
- BS months do not align with AD months — a single BS month spans parts of two AD months
- The BS calendar has months of varying lengths (29-32 days), unlike the relatively fixed Gregorian months
- Leap years in BS do not correspond to Gregorian leap years
- Always double-check converted dates for official documents
Using Our Date Converter
Our BS to AD Date Converter provides:
- Instant conversion in both directions
- Day name display in English and Nepali
- Support for dates from 2000 BS to 2090 BS
- Mobile-friendly interface for quick access