There are dozens of Pagan holidays and festivals, mostly ancient ones, and a few are listed below. The Quarters are the equinoxes and solstices, and the cross-quarters are the four days found exactly in between the quarters. The sabbats are solar and seasonal holidays, and are times for joyousness, and celebration. The Esbats usually happen on Full and New Moons (and to some, on Fridays), and are for Goddess celebrations (though, the God can be honored on Esbats, too, and there are moon gods), and magickal workings.

January
1 -- modern New Year's Day.
2 -- Advent of Isis, festival.
6 -- Epiphany (both Pagan, and other). End of Yuletide. The "9th Sabbat."
31 -- February Eve.

February
2 -- Imbolc, Candlemas, a Sabbat (solar/seasonal holiday); Groundhog's Day; festival of sky goddess, Nuit.
9 -- sacred day to Air Spirits or Sylphs.
14 -- Valentine's Day; Festival for Venus; and the Lupercalia.

March
1 -- Ancient Roman New Year's Day.
5 -- The Ploiaphesia, festival of navigation, dedicated to Isis.
20 -- Spring or Vernal Equinox, Ostara, day of Eostre, a Sabbat.
25 -- Lady Day, return of the Green Goddess.

April
1 -- Festival of Hathor.
First Sunday after the first full moon after the spring equinox -- festival of the goddess Ishtar, called "Easter" in modern times, also, of Eostre, or Ostara.
28 -- birthday of [email protected] -- send an e-card!
28 thru May 3 -- the Floralia, spring festival of goddess Flora.
30 -- Walpurgisnacht, Beltane Eve, May Day Eve, Sabbat.

May
1 -- May Day, Beltane, a Grand Sabbat! The Divine Marriage of the Goddess and God. Sacred day to beauty goddess Hathor and sun god Horus.
9 -- Sacred to Earth Spirits or Gnomes.
24 -- birthday of Artemis, a moon and nature goddess.

June
14 -- Night of the Tear Drop of Isis, when she mourns her husband, Osiris.
21 -- Summer Solstice, Litha, a Sabbat.
24 -- Saint John's Day, a good day for gathering herbs and branches, and wood for magickal wands.

July
23 -- Feast of Sothis, the star Sirius, a celestial form of Isis.
26 -- Eve of Epagomenal Days (July 27-31).
27 -- birthday of vegetation god, Osiris.
28 -- birthday of sun-god Horus.
29 -- birthday of dark god, Set; festival of guardian god, Anubis.
30 -- birthday of overall Goddess, Isis.
31 -- birthday of night goddess, Nephthys; August Eve.

August
1 -- Lughnasadh, Lammas, "Loaf Feast", First Harvest, a Sabbat; Ancient Egyptian New Year's Day.
6 -- heliacal rising of Sothis/Sirius (a double-star) just before the sun (the old ancient Egyptian new year).
9 -- festival of the Fire Spirits (Salamanders).
13 -- Day of Hecate, goddess of night, the dark moon (the day before the new moon), hounds, ghosts, and of crossroads.
22 -- Birthday of Y. J. D., a poet and past-life researcher.

September
8 -- Birthday of the Virgin Mary.
19 -- Fast of Thoth, a god of wisdom.
22 -- Autumnal Equinox, Mabon, Harvest Home, Second Harvest, a Sabbat.
23 -- a sacred day to wisdom goddess Athena.
24 -- commemoration of death and resurrection of Osiris.
28 thru October 3rd -- festival of/for Demeter (or Ceres), earth goddess.
29 -- Feast day to archangel, Saint Michael, and all angels and archangels!

October
2 -- Festival honoring the Guardian Spirits, or spirit guides, and angels.
24 -- sacred day to Water Spirits or Undines.
31 -- Halloween, Samhain Eve, Day of the Dead, Third and Last Harvest Festival; a Sabbat.

November
1 -- Samhain; Ancient Celtic New Year's Day; Sabbat.
2 -- All Soul's Day.
26 -- Poetry Day! Write a poem.

December
17 thru 19 -- the Saturnalia, dedicated to the god Saturn; a time of debauchery and license.
20 -- Mother Night, Yule Eve.
21 -- Winter Solstice, Yule.
25 -- Dies Natali Invicti Solis, or "Birthday of the Invincible Sun".
31 -- New Year's Eve.

* Plus, the Full Moons and New Moons are special days, and the 13th of each month is considered good.