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


He will be there in 1.5 hours.

I spend there 1.5 hours.


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

  • Or "an hour and a half" (more common in relaxed speech). – Michael Harvey May 24 '19 at 8:12
  • What about "an hour and half" (without "a")? I've seen it used a lot. – Jan May 24 '19 at 8:58
  • @Jan-Re: "I've seen it used a lot", see here and pay attention to the date of usage. – Victor B. May 24 '19 at 9:25

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