What's the difference in pronunciation between An dèidh and An-dè?
They are pretty much pronounced the same.
And an deigh 'the ice' is quite close as well, although you might (or might not) be able to spot the vowel is a little shorter, as indicated by the lack of accent.
This is one o'clock and eleven o'clock?
"Aon uair deug" is "eleven o'clock". Think of it literally as "one hour teen" :)
Couldn't this also mean after eleven hours, or would that require an additional qualifier (e.g. ùine)?