Liturgy of the Hours

Lauds Aurora, the dawn prayer, to greet the day
Prime Early morning prayer, first hour, about 6 a.m.
Terce Midmorning prayer, third hour, about 9 a.m.
Sext Midday prayer, sixth hour, about noon
None Midafternoon prayer, ninth hour, about 3 p.m.
Vespers Evening prayer, at the lighting of lamps, 6 p.m.
Compline Night prayer, before retiring for sleep
Matins Vigils or Nocturns, during the hours of night
Thank you Ned Hayes. I've never seen a list of these before.