THE POUNDIAN CALENDAR

Months:

1. Hephaistos - 30 days
2. Zeus - 31 days
3. Saturn - 31 days
4. Hermes - 28 days
5. Mars - 31 days
6. Phoebus - 30 days
7. Kupris - 31 days
8. Juno - 30 days
9. Athene - 31 days
10. Hestia - 31 days
11. Artemis - 30 days
12. Demeter - 31 days

The first six being solar male gods, the second six being lunar female gods.

In a leap-year, Hermes has 29 days.

I've cross-referenced this calendar in my perpetual calendar with several other solar calendars.