1 year is equal to 12 months
year is 365_days_long. one_year has 365.25_days century is 100_years. year is 365_1_4_days_long. months_of_31_days is considered_long_months. year has 12_months nine_months is three_quarters_of_year. decade is 10_years. years has 366_days year is 365_days.