2025 Calendar By Day. There are 7 months with 31 days, 4 months with 30 days, and 1 month with 28 days in 2025, or 52 weeks and 1 day in 2025 when counting by weeks. Allows to customize and set first day of the week to monday, saturday or sunday.

For a year calendar in 2025 see 2025 calendar. View the month calendar of december 2025 calendar including week numbers.