half hour

half hour (plural half hours)

1. Alternative form of half-hour.
   • 1813 January 27, [Jane Austen], chapter VII, in Pride and Prejudice: […], volume II, London: […] [George Sidney] for T[homas] Egerton, […], →OCLC, pages 80–81:

     [U]pon the whole she spent her time comfortably enough; there were half hours of pleasant conversation with Charlotte, and the weather was so fine for the time of year, that she had often great enjoyment out of doors.

   • 1897, Charles A. Bramble, “Winter Fishing Through the Ice”, in The Sportsman’s Magazine‎, page 430:

     Every half hour or so one or the other would steal off with snowshoes and toboggan to make the round of the holes, often returning with half a dozen fish that together weighed perhaps twelve pounds, perhaps twenty-four pounds; […]

   • 2006, Barack Obama, “Family”, in The Audacity of Hope: Thoughts on Reclaiming the American Dream, New York, N.Y.: Crown Publishers, →ISBN, page 338‎:

     I was a night owl and could be a bit grumpy (mean, Michelle would say) within the first half hour or so of getting out of bed.

   • 2006, Michael F[redric] Roizen, Mehmet C[engiz] Oz, with Ted Spiker, Lisa Oz, and Craig Wynett, You, on a Diet: The Owner’s Manual for Waist Management, New York, N.Y.: Free Press, →ISBN, page 44:

     Your stomach secretes ghrelin in pulses every half hour, sending subtle chemical impulses to your brain—almost like subliminal biological messages (carrot cake, carrot cake, carrot cake).