A Popular Dictionary of Shinto

HARENOHI

'Clear' days. The four days in each month on which festivals could be held according to the lunar calendar. These are the days of the new, full and half-moons, i.e. the 1st, 7th or 8th, 15th, and 22nd or 23rd. Other days are known as ke-no-hi and were seldom used for festivals. After the solar calendar was adopted in 1872 many festivals were re-scheduled, regardless of the hare/ke distinction, though local festivals often still keep to the lunar calendar.
See Nenchu gyoji.