An even better calendar?

Here's a modified version of that new calendar. There are now fewer changes (6),  March and September having the same number of days as they do now:

January	31	30	-1	-1
February	28	29	+1	0
March	31	31	0	0
April	30	31	+1	+1
May	31	31	0	+1
June	30	31	+1	+2
July	31	31	0	+2
August	31	31	0	+2
September	30	30	0	+2
October	31	30	-1	+1
November	30	30	0	+1
December	31	30	-1	0

Let's see what difference this makes to the dates for equinoxes and solstices: 

• first, we'll fix the 2025 Autumn Equinox at Sep 22 (i.e. unchanged)
• the 2025 Winter Solstice is now on Dec 22, one day later than before, as there are now 90, not 91, days in total in the three months of September, October, November
• the 2026 Spring Equinox, almost exactly 89 days later, i.e. 3 full months, is on Mar 22
• the 2026 Summer Solstice, nearly 93 days later, again 3 full months, is on Jun 22
• the 2026 Autumn Equinox, again nearly 93 days later, and again 3 full months, is now on Sep 22.

Wow - all these events, at least for 2025/6, are now on the 22nd of the month, so this mk2 version is even better! I find that quite surprising given the somewhat lopsided look with 2 months with fewer than 31 days at the start of the year and 4 such months at the end.