Monday, December 15, 2025, USA

December 15, 2025, is a Monday. It is the 349th day of the year, and in the 51th week of the year (assuming each week starts on a Monday), or the 4th quarter of the year. There are 31 days in December 2025 is not a leap year, so there are 365 days in this year. The short form for this date used in the United States is 12/15/2025; almost everywhere else in the world, it's 15/12/2025. The day of the beginning of December, 2025 is Monday, the day of the end of December, 2025 is Wednesday, the day of the begining of 2025 year is Wednesday, the day of the end of 2025 year is Wednesday.

How many days are in December 2025

• How many days are in December 2025 - There are 31 days in December 2025
• How many days are in 2025 year - There are 365 days in 2025

How many days till December 15 2025 from today

• How many days till December 15 2025 - 390 days
• How many weekdays till December 15 2025 - 266 working days
• How many weekend days till December 15 2025 - 124 holidays
• How many month to December 2025 - There are 13 month
• How many hours untill December 15 2025 - 9360 hours
• How many minutes untill December 15 2025 - 561600 minutes
• Countdown in seconds to December 15 2025 - 33696000 seconds