"1.5 hours" are "One hour and half" or "One and half hour"?

Question

1.5 hours are "One hour and half" or "One and half hours"?

Examples:

He will be there in 1.5 hours.

I spend there 1.5 hours.

Victor B. · Answer 1 · 2019-05-24T08:16:28.833

2

It's either "one and a half hours" (plural because it's more than one hour) or "one/an hour and a half".

edited May 24 '19 at 08:16

answered May 24 '19 at 08:10

Victor B.

Or "an hour and a half" (more common in relaxed speech). – Michael Harvey May 24 '19 at 08:12
What about "an hour and half" (without "a")? I've seen it used a lot. – Jan May 24 '19 at 08:58
@Jan-Re: "I've seen it used a lot", [see here](https://books.google.com/ngrams/graph?content=an+hour+and+half%2Can+hour+and+a+half&year_start=1800&year_end=2000&corpus=15&smoothing=3&share=&direct_url=t1%3B%2Can%20hour%20and%20half%3B%2Cc0%3B.t1%3B%2Can%20hour%20and%20a%20half%3B%2Cc0#t1%3B%2Can%20hour%20and%20half%3B%2Cc0%3B.t1%3B%2Can%20hour%20and%20a%20half%3B%2Cc0) and pay attention to the date of usage. – Victor B. May 24 '19 at 09:25

1 Answers1