2. (10 points) Beijing, China, won the hosting rights for the 24th Winter Olympic Games in 2022 on July 31, 2015. The opening ceremony of the Winter Olympics is scheduled for February 4, 2022, which falls on a Friday. (Today is Saturday, March 12, 2016)
【Analysis】First, analyze the day of the week for March 12, 2016, to March 13, 2022, and then deduce the day of the week for February 4 based on March 12.

【Solution】Solution: According to the problem, we know:
A common year has 365 days, which is 52 weeks plus 1 day. A leap year has 52 weeks plus 2 days.
From March 12, 2016, to March 12, 2022, there are 5 common years and 1 leap year, so the number of days to be added is $1+1+1+1+1+2=7$. This is exactly a Saturday.

Then, from February 4, 2022, to March 12, 2022, there are $24+12=36$ days.
$36 \div 7=5 \cdots 1$. Counting back from Saturday, it is the day before.
This means that February 4, 2022, is a Friday.
Therefore, the answer is: Friday