Teo: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?
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"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."
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