(i) A year has 365 days.
(ii) Years, divisible by 4, are leap years, e.g., 1986. They have 366 days.
(iii) February in a leap year has 29 days.
(iv) The last day of a year is the same as the first day. Thus, if the first day of a year is Friday, then the last day of the year is Friday and the first day of the next year is Saturday. However, if the first day of a leap year is Friday, then the last day of the year is Saturday and the first day of the next year is Sunday
