Flaws:

• fails to address leap years
• fails to address 365th day
• moon cycle will still slowly deviate
• retains clunky 7-day week that doesn't interact will with decimal counting system

I like it, but I got an even better proposal. Weeks should have ten day weeks, and each month should have 3 weeks. summer/winter solstice and the spring/autumn equinox as well as new years day are special holidays that fall between months and interrupt the week cycle. In leap years, new years is two days.

The 1st, 11th and 21st of each month are now Mondays, so you can tell the weekday of any date. Months are the same length just like in Jesse's proposal, but an even 30 instead of a clunky 28.

I've thought about this a lot

This meme brought to you by your local landlord

I came up with this independently years ago. It'll never catch on for the idiotic reason that you can't subdivide 13 like you can 12. 13 is a prime number, while 12 can be divided easily by 2, 3, 4, and 6. 12 is like the whore of simple math.

It really annoys the hell out of me that we don't use a better calendar. I think about this once a week at least. I feel like being stuck with the Gregorian calendar is a good example of why so many inefficient structures exist in society - some assholes centuries ago decided on a thing, and out of habit and laziness we've stuck with it since.

Is this true??? If so WHY THE F... ARE WR STILL USING THE CURRENT CALENDAR.

Honestly I would be all for a new calendar if this is true

I just wish a year had 360 days so each day gives you a clean one degree of angular movement (or we defined a full revolution around an axis as 365 degrees. Actually, anyone know why we didn't do that?)

The prime factors of 365 is 5 and 73, hence a month should either be 73 days and there should be 5 of them, or there should be 73 months with 5 days each.

Mathematical perfection!

But that's only 364 days. Which month gets the extra day, throwing the while thing off?

The thirteen month calendar is called the International Fixed Calendar. George Eastman instituted its use at the Eastman Kodak Company back in 1928, and it was used there until 1989.

The only authority I’ve seen that pushes 13 months is WMATA in DC, so they can charge you 13 times per year for a metro pass instead of 12. I always felt like that was some BS.

I just thought of something that could be better,

Scrap months altogether, just divide the year into quarters of 13 weeks each, name them for the seasons, Winter, Spring, Summer, Fall, there isn't really a reason why we need months specifically, if it's to shorten date numbers then count by week number and day number

Day/Week/Quarter/Year

Today's 7/8/4/23

In keeping with tradition though we can only do this if we add the new month after August and name it Tiber.

I like 10 months each with 6 weeks of 6 days each for a total of 360 days and a 5 day holiday at the end of every year (6 days during a leap year)

But Jesse really has opened my eyes to the possibility of a lunisolar calendar.

Lousy Smarch

Fun fact: this calendar exists and was in use by Eastman Kodak for most of its existence:

International Fixed Calendar

itt: 13 * 28 = 365.25

Aztec and mayan calendars iirc was 18 months of 20 days each and 5 extra days at the end of the year.

I would like to point out the biggest difficulty this faces.

There are about as many different ideas for new formats, complete with arguments about how they'd be the best one, as there are comments in this thread. And those arguments mostly hold up too.

A new format is never going to work because no one will be able to agree on what the best one is.

So here's what'd be a better alternative when considering seasons and quarters

March, June, September, and December are all 35 days long, every other month is 28 days long.

Day 365 is Year's End Day outside of the Calendar months, and Leap Day is an additional holiday inserted before January 1st when it happens.

The last adjustment I'd make is the Saint Monday plan, which is to say, make Monday a weekend day.

It's named after the moon, you see the moon at the end of the day, so the moon's day is the end of the week!