Which preposition to use with doomsday

over Occurrences 1%

It seemed leisurely certain, however, of catching us before nightfall; and, sure enough, as the light began to thicken, and we stood admiring its mountainous magnificencevast billows of plum-coloured gloom, hanging like doomsday over a stretch of haunted orchardthe great drops began to patter down.

without Occurrences 1%

He will answer your questions; yes, he has said he would; but you may prattle until doomsday without effect, so far as he is concerned, unless you finish your speech with an interrogation point.

Which preposition to use with  doomsday