About Calendaw Date Converter

Calendaw is a fast, accurate date converter tool which helps visitors instantly convert dates between English Date (AD / Gregorian Calendar) and Nepali Date (Bikram Sambat - BS). This bidirectional converter works both ways — convert AD to BS or BS to AD with precise daily calculations.

Gregorian Calendar and Bikram Sambat — The Differences

The world follows numerous calendars, each rooted in its unique cultural, historical, and astronomical significance. Two prominent calendars widely used in Nepal and across the globe are the Gregorian Calendar and the Bikram Sambat. Understanding these two systems is essential for legal documentation, academic timelines, festivals, and cultural events.

Key Differences Between Gregorian Calendar and Bikram Sambat

Feature Gregorian Calendar (AD) Bikram Sambat (BS)
Type Solar Calendar Lunar-Solar Calendar
Year Length 365 days (366 in leap years) Varies based on astronomical solar cycles (365 to 366 days)
Origin Introduced in 1582 AD by Pope Gregory XIII Historical Bikram Sambat era (57 BCE)
New Year Start January 1st Baisakh 1st (Mid-April)
Region of Primary Use Global international standard Official civil calendar in Nepal
Year Offset Standard AD Year (e.g. 2026) Approx. 56.7 to 57 years ahead (e.g. 2083 BS)

Why Date Conversion is Necessary

For Nepalese citizens and the global diaspora, converting dates between the Gregorian Calendar and Bikram Sambat is a daily necessity:

  • Legal & Administrative Purposes: Government forms, passport/visa records, contracts, and official documents in Nepal strictly use BS dates.
  • Academic Records: Schools and universities in Nepal mark academic sessions, exams, and transcripts based on BS.
  • Festivals and Events: Major traditional festivals like Dashain, Tihar, Teej, Chhath, and Loshar are aligned with the BS lunar-solar calendar.
  • Age & Birthdate Verification: Easily verify your Gregorian birthdate and age breakdown from your Nepali birthdate.