in the hours of daylight

у світлий час доби (‘We aimed to hit them in the hours of daylight, in the heart of the jungle.’ - ‘Operation Mayhem’, Heaney with Lewis, 2014)

flying hours / logged flight hours

logged flight hours / flying hours

daylight tactical march

daylight traffic line

daylight interceptor

daylight signaling lamp

shoot the daylight (out of)

hours flown in combat

cryptanalyst hours

maintenance by flight hours

airframe flying hours

assigned life (of an aircraft in flying hours)

engine logged hours

helicopter logged hours

mean time between repairs (flying hours)

time to first overhaul (flying hours)

total airframe flying hours

sack duty (hours, time)

Watt hours (Wh) rating

man hours of duty