For how long can/should I soak my orchids? Brassias, phalaenopsis, oncidium,etc

[NYCorchidman]

I don't think 24 hour-long soaking is any more beneficial to say, 5 hour one, which is more than good enough.

When I water my orchids, I sit them in water (the entire pot) for at least about half an hour. and I thought this was too long. lol

Every now and then I just leave them in water and go out and do things.
My observation is that one hour is more than enough to fully hydrate orchid plants.
For severely dehydrated orchids, single soaking won't revive them, but it will take a few times of good soaking.

By the way, the main genera of orchids I grow are paphiopedilum, dendrobium, cattleya, oncidium, phalaenopsis, all the usual but good stuffs I guess. lol