Add or Subtract Days Calculator — Bikram Sambat
मितिमा दिन जोड्ने वा घटाउने क्यालकुलेटर
Add or subtract days to a Nepali (Bikram Sambat) date — get the resulting BS date and its AD equivalent instantly. Great for notice periods, deadlines and hiking plans.
About Date Add Days
Nepali legal deadlines, tender dates, lease periods and notice windows are all written in Bikram Sambat (बि.सं.), and because BS months vary between 29 and 32 days, adding '30 days' by hand across a month boundary goes wrong easily.
This tool starts from any BS date in the supported range (2000–2090 BS), adds or subtracts the number of days you give, and returns the resulting BS date plus its AD equivalent — computed through the standard BS↔AD conversion tables month by month.
How to use — step by step
- Pick the starting BS year, month and day.
- Choose add or subtract, and enter the number of days.
- Read the resulting BS date, its AD equivalent and the weekday.
- Use it for notice periods, last filing dates, visa day-counts or trek itineraries.
Worked example
| Start | बि.सं. २०८३ कार्तिक २१ | = Nov 6, 2026 |
| Add 45 days | → | बि.सं. २०८३ मंसिर ६ approx. |
| Result | BS + AD | both values and weekday shown |
Frequently asked questions
QHow many days are in each BS month?
It varies by year — Baisakh through Ashwin can be 29–32 days each in any given year, which is exactly why counting by hand goes wrong. This tool walks day-by-day through the calendar data.
QCan I add months instead of days?
Months are trickier than days because '1 month' in BS is 29–32 days and people usually mean the same day number next month. For that, our age and date-difference tools handle month arithmetic; this page is strictly days.
QDoes it handle leap-year style BS differences?
Yes — the BS calendar has no leap year, but the month lengths shift irregularly, and this tool uses real calendar tables, not an average.
QWhat is the supported year range?
BS 2000–2090 (AD 1943–2033), the commonly published conversion table range. Dates outside it return 'no result' rather than a guess.