You see todays date. OK, lets format it. 01/01/10
The combination of 0s and 1s.
So lets call the first day of 2010 is a binary friendly day. If we calculate the decimal of this binary we get 22. And we know binary has base 2.
Add these digits divide them with binary base and again you will get 2. ((2+2)/2)=2. 🙂