[Vocabulary] 'half an hour' and 'an half hour'

[wotcha]

I've been usually saying 'half an hour' but tonight I found 'a half hour' in my book and wonder

it is commonly used expression.


Are both 'half an hour' and 'an half hour' interchangeable?

 

[bhaisahab]

I've been usually saying 'half an hour' but tonight I found 'a half hour' in my book and wonder

it is commonly used expression.


Are both 'half an hour' and 'a half hour' interchangeable?

Yes.

 

[emsr2d2]

For me "a half hour" is more AmE. I only really base this on the fact that my friend in Madrid, who was from Portland, Oregon was the first person I heard use it. After that, I started to notice it much more often from other Americans I came into contact with. In BrE, we almost exclusively use "half an hour".