These rituals are for specific days. However, the same ritual can be performed at a different time and day. Look at the aspects listed and then preform the ritual at that planetary hour. For example. A Full Moon Ritual highlighting a Venus aspect could be performed on any Monday at the hour of Venus. The effects will not be as strong but it still works. You might have to do it twice. To determine the planetary hour you either need a planetary hour book or Llewellyn's Daily Planetary Guide Astrological Notebook (it has a list of planetary hours in the back along with sunrise and sunset times.). Remember: "An it harm none, do what ye will." "What you do returns to you ten fold". Now that you know, you can't plead ignorance (not that, that ever worked anyway!).