A normal year sees 104 weekend days total (52 Saturdays + 52 Sundays). For a leap year, it's still mostly the same, only that some years can have 106 weekend days depending on the calendar arrangement.
A normal year contains 104 days of the weekends (52 days of Saturdays and 52 days of Sundays). Every leap year or a year that begins on a week-end may consist of 105 or 106. There are 104 weekdays or 104 Saturdays and Sundays in a year 2026 because it is a common year.
Each year is made up of 52 weeks and each week has 2 days of the weekends (Saturdays and Sundays). Thus, the number of weekend days varies from 104 in most years.
Weekends normally sum to 104 days in a 365 day year. Nevertheless, when the additional day is on a Saturday or Sunday the amount can be 105 weekend days.
A leap year (366 days) can occur on a weekend and therefore the number of days on a weekend could be 104, 105, and occasionally 106, depending on the calendar.