Millions of people make Monday resolutions. The same happens every birthday, the first day of the month/year/New Year/Christmas. If one could stick to all these resolutions for two days on average, that would give more than 33% of the days of the year. Each Monday resolution lasting for two days gives 104 days a year. If you can also do two days at the beginning of each month that adds another 24 days. Finally, we need to add another 6 days for birthdays, New Year and Christmas resolutions. In total this is134 days, 37% of the year.