He made an hour phone call.

他打了一小时电话。

youdao

If he doesn't go to sleep in half an hour, you must call me.

如果他半小时后还不睡觉，你就得叫我。

youdao

After an hour and a half, I pulled my cell phone out to call the friends I was supposed to meet that evening.

一个半小时后，我拿出手机给我那天晚上要见面的朋友们打电话。

youdao

For the fourth year, people are being urged to turn off their lights for one hour to call attention to the issue of climate change.

VOA: special.2010.03.22

"Now we have what we would call rush hour conditions or peak travel conditions for as much as eight hours during the day - about three to four hours in the morning and similar time in the evening."

VOA: standard.2010.07.26

He helps staff the University of Pittsburgh School of Medicine's center that provides 24-hour consultations for in-flight emergencies for the airlines studied and that fields an average of one call per hour.

WSJ: The Flight Status of Passenger Ailments

Twice it was taken off call for an hour while it was cleaned.

BBC: NEWS | UK | Wales | Mid | Vandals attack lifeboat station

Its 24 hour call centre is the biggest single employer in Leeds.

BBC: Cloth caps to cyberspace