As the alter ego of the moon, the sun offers a significant source of energy for natural magick and solar energies often offers power for more instant magickal results.
Dawn is best for new opportunities, beginnings and people entering your life; noon for a burst of instant power, energy, success and prosperity. Dusk is for reconciliation or letting go. Midnight assists healing magick, psychic protection and in accepting what cannot be changes.
You can combine lunar and solar energies for a quick solar fix and the slower continuous lunar consolidation of the initial solar results in you life. Moon spells on the day of the full moon will get things off the starting block and keep up the impetus through the month. Often the moon and sun are in the sky at the same time (check your moon dairy or weather section of the newspaper or just look) and combine the energies accordingly.