日午 is read as にちご (nichigo) and means noon.
にちご
nichigo
うまのひ
day of the Horse
ひび
days (e.g. of one's youth)
にほん
Japan
にほんじん
Japanese person
にほんご
Japanese (language)
にほんいち
Japan's best
ひ
(past) days
にっちゅう
Japan and China
ひなか
ひごろ
normally
にちじ
date and time
ひので
sunrise