Some of those connections are interesting. The 20 to 30 gallons are not present in the Greek, as gallons is a British unit, not a Biblical unit. Jesus/Yeshua being on the cross for 6 hours is an interesting connection and we had not considered that.
Regarding Enoch, we do have some thoughts. We believe that during the time of Noah, the pattern of the sun (day), moon (month), and stars (year)(Genesis 1:14) produced a 30 day month and a 360 day year, consistently. Then at some point, perhaps at Noah's flood, or perhaps the adjustment of the sundial (by 10) with Hezekiah, changed the annual pattern of the starts to be 365 instead of 360. It is likely that Enochs death prophetically foretold that change.