A YEAR SHOULD HAVE 13 MONTHS IF WE HAD 13 MONTHS INSTEAD OF 12, EVERY MONTH WOULD BE EXACTLY 28 DAYS, THE 1ST WOULD ALWAYS BE A MONDAY, AND THE 28TH WOULD ALWAYS BE A SUNDAY. EVERY MONTH WOULD HAVE EXACTLY 4 WEEKS INSTEAD OF 4.257 AND WE WOULD PROPERLY ALIGN OURSELVES WITH THE CYCLE OF THE MOON.