+0
Americans often use after instead of past in telling the time, for example, ten after six.

But do Americans say half after ... in telling the time?
+2
Oddly, we don't say "half after" but we do say "quarter after" and "quater of" or "quater to." (The latter interchangeable spoken, but "quarter to" in writing."

"Half past" isn't used very often.

I know it's very idiomatic, but you'd be more likely to hear "I'll be there about quarter after, maybe 6:30 if the traffic is bad." Or even "I'll be there about 6:30, maybe quarter of, if the traffic is bad." In a situation like that, where it's clear from context that you mean "quarter to 7:00," you'd leave that off in speech."
+0
Good examples GG. I never thought about those much, but being idiomatic certainly plays a big role!
Students: We have free audio pronunciation exercises.
Comments  
No. Half past six or six-thirty are the only normal options.
 BarbaraPA's reply was promoted to an answer.
 Danyoo's reply was promoted to an answer.
Try out our live chat room.

Bitcoin Social Trading Network

Join millions who have already discovered smarter strategies for investing in Bitcoin. Learn from experienced eToro traders or copy their positions automatically!

http://www.bartleby.com/95/16.html

Dear Mrs. Kindhart (or Martha):
Will you lunch with me on Monday the tenth at half after one o’clock?
Hoping so much to see you,

Sincerely (or affectionately),
Jane Toplofty.
Emily Post (1873–1960). Etiquette. 1922.