I recall that the Romans did divide night/day into twelve equal hrs of varying length dependant on season so each hour was assigned to a different deity . Crops would be planted in the hour of Ceres for a mundane example . Spells would be cast according to the nature of the required result - hour of Venus for love - Jupiter for success , Mars for chocolate or war , destructive spells after midnight creative spells before and so on . Its many years since I studied this but it's only just occurred to me that this was the natural order based on the real day/night cycle .
LacusCurtius • The Hours of the Day in Classical Antiquity (Smith's Dictionary, 1875)
This site describes some of what I say. I think water clocks were used during the times when the sun or stars were not visible or possibly astrolabes and mechanisms such as that Antikythera mechanism .
Think it was possibly the babylonians who originated the 360 degree system - according to mainstream academia but my belief is that it could go back far before then . People were very intelligent in those days imo.
Nowadays much comes under the hidden sciences I believe. Might have to delve deeper time permitting.
This 24hr clock thing is a control method.