Much better is measure time in Moons, I am 730 moon old and some are older than Matusalem.
Is perfect, each month has 28 days, a year has 12 or 13 moons and every 28 years all returns exactly to the same position as when God created it all.
Today we are in the 24,886 moon A.D.

The problem is that the synodic period of the Moon is 29.53 days and not 28 days...........

Stupidity also evolves!