Nepali Date Converter — AD to BS (Bikram Sambat) & Back
Convert Gregorian (AD) dates to the Nepali Bikram Sambat (BS) calendar and back. Bikram Sambat is Nepal's official civil calendar — all Nepali government documents, national holidays and official records use BS dates. The result shows the BS year, the Nepali month name in English and Devanagari script. Furthermore, the tool flags 1 Baishakh — Naya Barsha (Nepal New Year) — which falls around 13 April each year.
How to use the Nepali Date Converter AD to BS
The twelve Nepali (Bikram Sambat) months
The Nepali calendar has twelve months. Furthermore, each month has a variable number of days — between 29 and 32 — determined by astronomical calculations and published in the official Nepali Patro (almanac) each year. This variability makes precise conversion more complex than fixed-month calendars.
| Month | Nepali | Days (approx) | Gregorian start |
|---|---|---|---|
| 1. Baishakh | वैशाख | 31 | ~13–14 April |
| 2. Jestha | जेठ | 31–32 | ~14–15 May |
| 5. Bhadra | भाद्र | 31–32 | ~17–18 August |
| 9. Poush | पौष | 29–30 | ~17 December |
| 12. Chaitra | चैत्र | 30 | ~14–15 March |
Nepal's official Patro calendar
The official Nepali Patro is published annually by the Government of Nepal. Furthermore, it specifies the exact number of days in each BS month for that year — a number that varies by 1 or 2 days from year to year based on astronomical calculations. Moreover, the Patro is the authoritative source for all official BS dates and is used by Nepali government offices, courts and businesses for all scheduling and record-keeping.
How Bikram Sambat works
Bikram Sambat is a lunisolar calendar — its months follow the moon while leap months keep the calendar aligned with the solar year. Furthermore, the BS year starts on 1 Baishakh, which falls around 13–14 April each year. The BS year is approximately 56 to 57 years ahead of the Gregorian year.
Month lengths = 29–32 days (variable, set annually in official Patro)
BS 2082 = approximately 14 April 2025 to 13 April 2026
Exact conversion = requires official Nepali Patro lookup tables
Why exact BS dates require the official Patro
Unlike the Gregorian, Saka or Tamil calendars, the Bikram Sambat month lengths are not fixed — they vary by 1 to 2 days each year based on lunar and solar calculations. Furthermore, this means a precise BS-to-Gregorian or Gregorian-to-BS conversion requires the actual day-count table for each BS year from the official Nepali Patro. This tool provides a close approximation that is accurate to within 1–2 days for most dates.
Worked example: Nepal New Year 2025
Nepal New Year (1 Baishakh BS 2082) falls on approximately 14 April 2025. This is Naya Barsha — Nepal's most important national holiday.
| Gregorian date | BS date | Event |
|---|---|---|
| 14 April 2025 | 1 Baishakh 2082 BS | Naya Barsha — Nepal New Year |
| 20 August 2025 | ~4 Bhadra 2082 BS | — |
| 13 April 2026 | 30/31 Chaitra 2082 BS | Last day of BS 2082 |
What is the Bikram Sambat calendar?
Bikram Sambat (BS) is Nepal's official civil calendar for all government documents, holidays and legal records. Furthermore, Nepal is one of only two countries using a non-Gregorian calendar as its primary official system. The calendar is also used in northern India and among Hindu diaspora communities. BS 2082 corresponds roughly to Gregorian 2025.
The calendar is named after the legendary Indian emperor Vikramaditya. Furthermore, it is a lunisolar calendar like the Indian Vikram Samvat — sharing the same year numbering. Nepal's Bikram Sambat uses the same year count as Vikram Samvat but with Nepali month names published in the annual Patro. Moreover, 1 Baishakh — Naya Barsha — is Nepal's most celebrated national holiday.
BS in Nepali official documents
All Nepali official documents use BS dates. Furthermore, Nepali passports show the date of issue and expiry in BS. Citizenship documents, land titles and court records all use BS. Moreover, academic certificates from Nepali schools and universities carry BS dates — requiring conversion to Gregorian for international academic recognition and visa applications.
Why Bikram Sambat conversion matters
Nepal sends 3 to 4 million workers abroad annually — primarily to Gulf countries. Furthermore, these workers carry Nepali BS-dated documents requiring conversion for employment contracts. Moreover, embassies, HR teams and legal services dealing with Nepali nationals encounter BS dates constantly.
Nepal's IT sector and business outsourcing industry serves global clients. Furthermore, project timelines, contracts and deliverable schedules agreed with Nepali firms may reference BS calendar dates. Moreover, understanding when Nepali national holidays fall in the Gregorian calendar — particularly Dashain (the largest Hindu festival, spanning approximately 15 days in October) and Tihar — is essential for realistic project planning.
Dashain and Tihar — Nepal's major holidays
Dashain is Nepal's largest festival — 15 days of celebration in Ashwin (September–October). Furthermore, many businesses effectively pause for the full Dashain period. Tihar (the festival of lights) follows immediately after Dashain. Furthermore, the two back-to-back festivals create a 3 to 4-week period of reduced Nepali business productivity.
Frequently asked questions
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