We change February to a 29 day month, and all the others to 28 days, then add a month named after the greatest person to ever live, DragonTypeWyvern. This results in 13 28 day months, and eliminates numerous scheduling mistakes and saves quite a lot of time, on the scale of the rest of human history (hopefully).
Some say to have a separate global holiday with the extra day instead of putting it in February, with it extended to a two day holiday on Leap Years, however making February the longest month is funny.