Free tool

Nepali Date Converter: BS to AD and AD to BS

Convert Bikram Sambat and English dates both ways, with the weekday and Nepali month name.

How it works

Pick a BS (बि.सं.) date to get the English (AD) date, or the other way round. Nepal's fiscal year runs from 1 Shrawan to the end of Ashadh — FY 2083/84 began on 17 July 2026 — and every tax and OCR deadline is set in BS, so this is the quickest way to check a due date.

Date in AD

17 Jul 2026

Day
Friday
BS date
1 Shrawan 2083 (2083/04/01)
Days in this BS month
31

Based on the published Nepali calendar month lengths. Government notices are dated in BS, so always quote the BS date in filings.

Why the BS date matters for businesses

Government offices in Nepal — the IRD, OCR, SSF and local bodies — set deadlines, issue certificates and date notices in Bikram Sambat. A VAT return 'by the 25th' means the 25th of the Nepali month, and the OCR annual return is due by the end of Poush, not a fixed English date.

BS months have 29 to 32 days and change from year to year, which is why a converter beats mental arithmetic. To turn these dates into a full schedule for your company, use the compliance deadline generator or see the compliance calendar.

The 12 Nepali months

Bikram Sambat months and their approximate English equivalents
BS monthNepaliRoughly
Baisakhबैशाखmid-April – mid-May
Jesthaजेठmid-May – mid-June
Ashadhअसारmid-June – mid-July (fiscal year ends)
Shrawanसाउनmid-July – mid-August (fiscal year starts)
Bhadraभदौmid-August – mid-September
Ashwinअसोजmid-September – mid-October
Kartikकात्तिकmid-October – mid-November
Mangsirमंसिरmid-November – mid-December
Poushपुसmid-December – mid-January
Maghमाघmid-January – mid-February
Falgunफागुनmid-February – mid-March
Chaitraचैतmid-March – mid-April

Questions about this tool

When does the Nepali fiscal year start?

On 1 Shrawan. FY 2083/84 started on 17 July 2026 and ends on the last day of Ashadh 2084 (16 July 2027).

Why do BS months have different lengths?

Bikram Sambat is a solar calendar whose month lengths (29–32 days) are set from astronomical calculations, so they vary year to year.

Which years does this converter cover?

BS 2070 to 2090 (April 2013 to April 2034), which covers current filings and deadlines.

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