On a side note ... there are few experiences in life that compare to listening to "Aegean Sea" on headphones, stoned out of one's gourd, whilst looking over the deck of a ferry crossing the Aegean Sea. I'd unreservedly recommend this to anyone who hasn't tried it.
I just looked and yeah: those times on the labels follow the 1972 original LP. Even on this Greek pressing:
https://www.discogs.com/Aphrodites-Child-666/release/13539241
Notice how it lists the time for “The Battle Of The Locust” as 0:56 (as usual) although it runs for 1:41.
And “Hic Et Nunc” is listed at 3:00 -- not 4:37.
Those are two of the more extreme time differences on "666."
As far as I know, the 1974 Greek 2LP is the only place I know of that has the different mixes. (On Vangelis Collector, the guy mentioned a single German white label test pressing that apparently had some of the different "Greek" mixes on it but I can't verify whether stock copies of the German press from 1974 do, or not.)
To the best of my knowledge, the Greek mixes have yet to be released on CD.