Dec 2025 Jan 2026 Calendar. What to expect in space and astronomy in 2025 jan. These dates may be modified as official changes are announced, so please check back regularly for updates.

If you include the end date of jan 1, 2026 which is a thursday, then there would be 24 weekdays and 8 weekend days including both the starting monday and the ending. Detailed calendar for january 2025 with federal, religious and common holidays marked.