Egyptian calendar
For more inspiration here are some Egyptian ceremonies from around the calendar period to draw ancient mimetic inspiration from.
Month: Tybi 	Netjer of the Month:Min 	Peret (Spring)
Netjer of the Season: Khepri   Season: Sowing
Egyptian Calendar 	Gregorian Calendar     	Festival/Celebration
1 	November 16 	Month of Tybi begins; Heb Sed Festival; Festival of Bast
5 	November 20 	Day of Sekhmet and the Purifying Flame
9 	November 24 	Day of Offerings to Sekhmet
13 	November 28 	Feast of Het-Hert (Hathor) and Sekhmet; Day of prolonging life and the goodness of Ma'at
18 	December 3 	Going forth of the Netjeru of Abydos
20 	December 5 	Bast goes forth from Bubastis
21 	Dec. 6 	Bast guards the Two Lands; Day of offerings to the Shemsu (followers) of Ra
23 	December 8 	Feast of Neith
28 	December 13 	The Day of Tehuti's taking the oath
29 	December 14 	The appearance of the Hu and Sia; Tehuti (Thoth) sends Bast and Sekhmet to guide Egypt
30 	December 15 	Day of crossing before Nun in the Temple of Hapi
Month: Mechir 	Netjer of the Month:Rekhur
Egyptian Calendar 	Gregorian Calendar     	Festival/Celebration
1 	December 16 	Month of Mechir begins; Festival of the Little Heat; Day of Ptah lifting up Ra with His hands
2 	December 17 	Day the Netjers of Heaven receive Ra
3 	December 18 	Set goes forth
6 	December 21 	Winter Solstice; Feast of Aset (Isis)
8 	December 23 	Festival of the Great Heat; Feast Day of Het-Hert (Hathor)
10 	December 25 	Birth of Heru (Horus) the child of Aset (Isis) ; Going forth of Wadjet singing in Heliopolis;Day of Elevating the Great Netjert (Goddess) in all Her names & manifestations
11 	December 26 	Feast of Neith; Birth of Sebek (Sobek)
13 	December 28 	Day of Sekhmet going forth to Letopolis
16 	December 31 	Feast of Sekhmet
17 	January 1 	Day of keeping the things of Wasir (Osiris) in the hands of Anpu (Anubis)
20 	January 4 	Day of Nut and Raet proceeding southward
22 	January 6 	Feast of Ptah and Heru (Horus)
23 	January 7 	Festival of Aset (Isis)
24 	January 8 	Festival of Aset (Isis); Birth of Aion
26 	January 10 	Going forth of Min to Coptus; Aset sees Wasir's face
27 	January 11 	Feast of Sokar
Month: Pamenot 	Netjer of the Month:Amun-Ra
Egyptian Calendar 	Gregorian Calendar     	Festival/Celebration
1 	January 15 	Month of Pamenot begins; Feast of entering Heaven and the Two Lands
5 	January 19 	The brilliant festival of lights as Neith goes forth from Sais
6 	January 20 	Going forth of Yinepu (Anubis); Festival of jubilation for Wasir i(Osiris)n Busiris
8 	January 22 	Day of making way for Khnum
9 	January 23 	Day of Het-Hert (Hathor)
10 	January 24 	Day of coming of Tehuti (Thoth)
13 	January 27 	Tehuti and and the khu go forth
16 	January 30 	Day of opening the doors and courts at Karnak
18 	Feb. 1 	Feast of Nut
19 	February 2 	Birthday of Nut
22 	February 5 	Birthday of Apep (Apophis)
23 	February 6 	Feast of Heru
26 	February 9 	Day of unseen in the Underworld
28 	February 11 	Feast of Wasir (Osiris) in Abydos
30 	February13 	Feast of Wasir (Osiris) in Busiris; The Doorways of the Horizon are opened