Reading this I learnt that '12:00 PM' is noon in America, and not literally 12 hours post meridiem, i.e. midnight!

The world cup truly brings the peoples of the world closer together.

As a CS major, the only way that PM and AM ever made sense was to realize that hours were really mod-12 and started counting at 0. Noon is then 0pm which is followed by 1pm and makes everything entirely consistent.