Haha! Easy enough mistake I suppose (especially to speed up the process. i.e. copy and pasting lines and changing numbers). Something which the beta-testers should undoubtedly spot.
I use Excel a lot to keep tabs on my fleet and units and stuff, and I find it funny how Excel correctly increases the number from 1st to 2nd, 3rd, 4th etc. Sometimes MS does things right
If it's really a 360-day a year, things like seasons will get screwy fast. You'll have your summer Christmas, white Spring Break, agricultural messes and all sorts of inconveniences in no time at all. And if you're going to change the days to make it fit...well, good luck with 6:00 A.M. middays and daily alarm clock maintenances.
Well, the islamic calendar, which is moon-based as opposed to our sun-based calendar indeed has the effect that their religious holidays go round the year we use, which means that you can have a ramadan in summer in scandinavia, which would be quite hard to endure.... (although ramadan in winter would hardly be an effort ofcourse)
HOI abstracts all that and get it wrong on purpose, to make it simple; the HOI's universe doesn't really have a sun like ours (duh?) so the seasons don't get screwy. But I don't see why making it right is wrong.
Well, actually HoI2 does have seasons (winter conditions and stuff), but that's no problem. However, there is another thing that is wrong in HoI2 concerning the seasons, which is the length of night and day. Even in summer, the night is longer than day on northern hemisphere. That is because the night/day-border does shift north and south during the season cycle,. but it does not 'rotate' to make the day longer than the night during summer and vv. At the equinox (like today

), the length of day and night is equal all around the earth, so the line should be 90° vertical. This does not work in HoI2, which put day-/night-warfare at a disadvantage (or advantage for night bombing) on the northern hemisphere, regarding of season.
I really hope that part gets fixed in HoI3.
EDIT: Oh, and I liked the 30-day calendar as it makes calculating easier, but one cannot have all he wishes. I'd rather have correct night and day lengths
