Estimate how many public holidays fall inside a chosen date range.
The yearly holiday count is spread across the average year length, so the share falling inside the range is an estimate. Public holidays shrink real working time, so counting them inside a project window prevents over-committing.
Holiday Count
Holidays in range = round(range days x holidays per year / 365.25)
Holidays in range = round(range days x holidays per year / 365.25) The yearly holiday count is spread across the average year length, so the share falling inside the range is an estimate.
Public holidays shrink real working time, so counting them inside a project window prevents over-committing.
This calculator takes 7 inputs: Start year, Start month, Start day, End year, End month, End day, Holidays per year. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.