Doctors are advised to give them within the hour before the operation.

VOA: special.2010.04.21

NASA warned the three astronauts inside about one hour before the object was to reach the area of the station.

VOA: special.2009.04.01

One hour before landing, Lovell,Swigert and Haise said thanks and goodbye to their lifeboat, the lunar module.

VOA: special.2009.07.22

The president spoke in Pittsburgh, less than an hour before deliberations resumed at the G20 economic summit.

VOA: standard.2009.09.25