"It is twenty five past one."
Translation:Mae hi'n bum munud ar hugain wedi un.
Why is it "Mae hi'n bum munud ar hugain wedi un" rather than "Mae hi'n bum ar hugain wedi un"?
"five minutes on twenty", not "and twenty", if you want to be literal :)
Yes, the traditional vigesimal (20-based) system that is used when telling time puts the "ones" (up to nineteen) before the twenties.
My question is more: why do they mention minutes before adding the extra twenty? I'd be fine with "5 and 20 minutes"
Just because that's the way it is, I suppose? Cornish does this as well (not surprisingly, since it's related to Welsh).
Oh didn't more it meant "on". I don't think it was presented in the lesson
It probably wasn't, because you're not expected to know the literal meaning of the individual words in that construction -- just how to use them to form numbers in the vigesimal counting system.