To calculate the number of days since February 9, 2024, up to December 12, 2024, we can break it down as follows:
From February 9 to February 29 (2024 is a leap year): 20 days
From March 1 to March 31: 31 days
From April 1 to April 30: 30 days
From May 1 to May 31: 31 days
From June 1 to June 30: 30 days
From July 1 to July 31: 31 days
From August 1 to August 31: 31 days
From September 1 to September 30: 30 days
From October 1 to October 31: 31 days
From November 1 to November 30: 30 days
From December 1 to December 12: 12 days
Now, adding these values together:
20 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 12 = 31 + 31 + 31 + 31 + 30 + 30 + 20 + 12 = 303 days
So, it has been 303 days since February 9, 2024.
