MM Yield vs. Bond Yield

I apologize in advance if this isn’t the most thought-provoking question of the night, but does anybody have any ideas about why the MM yield and bond equivalent yield are different (360 days vs. 365)?

Money market products like CDs and time deposits mostly use 360 days as the base when calculating the interest as compared to Bonds that use 365 days.

The bond equivalent yield is 2 x semi-annual yield