Early Roman Calendar

Number of days in the month	Early Roman Calendar
	Months with 31 days	Months with 29 days	Month with 28 days
	Martius, Maius, Quintilis, October	Aprilis, Junius, Sextilis, September, November, December, Januarius	Februarius
	Latin names of days
1	Kalends	Kalends	Kalends
2	Ante Diem VI Nones	Ante Diem IV Nones	Ante Diem IV Nones
3	Ante Diem V Nones	Ante Diem III Nones	Ante Diem III Nones
4	Ante Diem IV Nones	Pridie Nones	Pridie Nones
5	Ante Diem III Nones	Nones	Nones
6	Pridie Nones	Ante Diem VIII Ides	Ante Diem VIII Ides
7	Nones	Ante Diem VII Ides	Ante Diem VII Ides
8	Ante Diem VIII Ides	Ante Diem VI Ides	Ante Diem VI Ides
9	Ante Diem VII Ides	Ante Diem V Ides	Ante Diem V Ides
10	Ante Diem VI Ides	Ante Diem IV Ides	Ante Diem IV Ides
11	Ante Diem V Ides	Ante Diem III Ides	Ante Diem III Ides
12	Ante Diem IV Ides	Pridie Ides	Pridie Ides
13	Ante Diem III Ides	Ides	Ides
14	Pridie Ides	Ante Diem XVII Kalends	Ante Diem XVI Kalends
15	Ides	Ante Diem XVI Kalends	Ante Diem XV Kalends
16	Ante Diem XVII Kalends	Ante Diem XV Kalends	Ante Diem XIV Kalends
17	Ante Diem XVI Kalends	Ante Diem XIV Kalends	Ante Diem XIII Kalends
18	Ante Diem XV Kalends	Ante Diem XIII Kalends	Ante Diem XII Kalends
19	Ante Diem XIV Kalends	Ante Diem XII Kalends	Ante Diem XI Kalends
20	Ante Diem XIII Kalends	Ante Diem XI Kalends	Ante Diem X Kalends
21	Ante Diem XII Kalends	Ante Diem X Kalends	Ante Diem IX Kalends
22	Ante Diem XI Kalends	Ante Diem IX Kalends	Ante Diem VIII Kalends
23	Ante Diem X Kalends	Ante Diem VIII Kalends	Ante Diem VII Kalends
24	Ante Diem IX Kalends	Ante Diem VII Kalends	Ante Diem VI Kalends
25	Ante Diem VIII Kalends	Ante Diem VI Kalends	Ante Diem V Kalends
26	Ante Diem VII Kalends	Ante Diem V Kalends	Ante Diem IV Kalends
27	Ante Diem VI Kalends	Ante Diem IV Kalends	Ante Diem III Kalends
28	Ante Diem V Kalends	Ante Diem III Kalends	Pridie Kalends
29	Ante Diem IV Kalends	Pridie Kalends	-
30	Ante Diem III Kalends	-	-
31	Pridie Kalends	-	-