src.system.date.calc_partial_years

src.system.date.calc_partial_years(dt1: date, dt2: date) → float

Calculates a fractional number of years between two dates. This function is leap-year aware, and precise to the day.

Parameters:

• dt1 – Later date.

• dt2 – Earlier date.

Returns:

Fractional number of years between two dates.