Student or Learner
When someone called you on the cellphone, and if it was an inconvenient time for you, which would be correct to say?
You caught me on a bad time.
You caught me at a bad time.
I think I once heard 'on' would be more American way and 'at' would be more British way. Is this true? Or simply one of them is correct and the other one is incorrect?
Thank you very much.
'You caught me at a bad time'.
This is correct, I haven't heard 'on a bad time' maybe it's American, I don't know.