Is the year 365.25

The year is not exactly 365.25 days; it is approximately 365.2425 days. This discrepancy is why we have a leap year every four years to account for the extra quarter of a day, adding an additional day in February. However, to correct for the slight overestimation, certain years that are divisible by 100 are not leap years unless they are also divisible by 400. Thus, while 365.25 is a useful approximation, it is not entirely accurate.