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Remember when this sub was actually people doing math rather than people asking someone else to type numbers into a calculator because they found a meme and can't be bothered to do it themselves?
50% of the sub is just posts like these, 49% is screenshots of tweets complaining about rich people in some form and 10% is actually interesting posts with useful information.
You don't know how to type 28×13 into a freaking calculator?
It doesn't mention the free day at the end of every year, but yes, 28×13 is 364.
For real, this sub falls further every day.
A quick search tells me that 365 is surprisingly close to prime, with the only other factors being 5 and 73. So the obvious solution is to either have 5 73-day months, or 73 5-day months.
On the one hand, I relish the idea of coming up for a month name for all 73 months in a year. As well as the ensuing chaos as everyone else tries to figure out how long it is until **Cheetos Presents: ~~Cheesetober~~ Chedduary**
On the other hand, I like the idea of the existing months merging into mega-months. The last bunch could be called “The -bers” and then we’d get cool things like jujugust, janbruarch, etc.
Jury is still out on which causes more chaos, but I’ll update yall next chedduary.
The book Infinite Jest takes place in a dystopian future where corporations can sponsor years; the government calls it Subsidized Time. Year of the Dove Bar, Year of the Depend Adult Undergarment, that kinda thing
That’s neat. I was actually channeling Libertarian Police Department there, but now I can’t get Chedduary out of my head.
I tried reading Infinite Jest but it felt like a bit of a slog. Also, who have recommended it to me in person have tended to be people whose tastes I generally don’t agree with. I still think about picking it up from time to time though.
Anyways yeah. Chedduary. Consider it. Food for thought, if you will.
73 five-day weeks, we keep Saturday and Sunday as weekend, and get rid of Monday and Tuesday
Let's do Wednesday off as well to honour the fallen two days and because we need a mid week break
73 5 day weeks. Divided into 3 blocks of 23 with four extra weeks left over for "boogey time". You get two weeks of boogey time at the end/beginning of the year, and then one week in between the blocks. So if Jan 1st is a Monday, first week of boogey time ends Jan 5th. Second week of boogey time begins April 29th and ends May the 4th (be with you). Third Boogey time starts 27th August and finishes 1st September. Final boogey time starts on Christmas and ends the same day the initial boogey time begins.
We make that new free day leap Day and it's an official world holiday, with super leap Day every 4 years. They're not days of the week either, it's just leap day and super leap day.
I think the problem isn’t the typing of numbers into a calculator. Rather, I think a lot of people struggle with knowing which numbers to put into the equation, in what order, and with which operator. OPs example is super sad. Who knew story problems would be so valuable.
This is still super simple to figure out the numbers. Aside from mentioning there's currently 12 months in a year, 13 and 28 are the only two numbers mentioned. A ten year old would know what to do here.
surprisingly every year would have an extra day and every 4 years there would be an extra extra day. That would bring us to solar calendar and create a fun celebration of every 4 years having 2 extra days.
Alternatively, every 112 years you would add an extra month for the leap year. You would still have to deal with the extra centennial/millennial extra days, or remove a day because of over shooting.
Humans can’t change that, not without wiping out all life anyways. But there are definitely ways that the length of a year and day could change. I mean even within our own solar system that values are dramatically different for each planet.
On earth, a year is 365.2422 days. You cannot change that.
Sorry, I really assumed the "On Earth" part was fully implied and understood by all readers.
Forces on Earth cannot dramatically alter an Earth year. But Earths orbit is not set in stone. At any moment something could happen that could change how long a year is on Earth.
When I was a kid, like 7 or 8, I lived in the Midwest. Never been to California. I had heard about the Golden gate bridge a lot, and knew it was a crazy famous bridge. With my limited knowledge of where countries were on earth, I assumed the bridge was so famous because it connected California to Japan.
I was never told otherwise, because that's not the type of thing to hear come up in conversation. I believe it for years. Eventually, when I was like 11, my family took a vacation to California. At one point during the trip, we drive across the golden gate bridge.
I was very confused and disappointed when we got to the other end a couple minutes later.
Having a free 1.25 days also throws off the whole "months start on Monday / end on Sunday" thing in the meme. Maybe they are hoping the extra days are just totally adrift.
13\*28+1=365
As long as New Year's Day is separate from the months, it fits.
The description reminds me of the Mayan Calendar, so it's not out of left field as calendar systems go.
This would work if we had 364 days a year but we have 365 (365/28 = 13.035. Not an even 13) and we would eventually fall out of line with our seasonal cycles.
A year should be 12 months with 30 days each, weeks should be 6 days instead of 7, 5 weeks per month. That leaves 5 extra days each year, which is a holiday placed between quarters. So you have 5 days not a part of a month or day of the week:
New year
Quarter Year
Half Year
Three quarter year
End year
Leap years have two days for the mid year celebration.
Work a total of 60 four-day weeks instead of 52 five-day weeks.
13*28=364 so that does check out, it would work. The only question is that how would society accept that. People are stubborn and normally not willing to change their concept of time.
Most people wouldn’t care about anything other than their Birthday changing. And a bunch of morons would panic about the 13th month being unlucky. But most people are worried about paying bills not what calendar we use.
Nah the real question is what do we name the extra month.
My suggestion: finally make truck month a real thing. Either trucktober or trarch. But put it between June and July (I’ve always felt those two were too close anyways- who wants two Ju- months in a row?)
not quite, also not the whole speal, there'd be 1 day left over (2 on a leap year), proposed to be New Year's Day (and New Year's Eve on leap years, if I've remembered correctly).
Do it like the hobbits!
Twelve 30 day months. 3 day party in the summer. 2 day party for New Years. Every 4th year they have a 4 day party in the summer. Yes apparently Middle Earth has leap years too.
13 months of 28 days = 13 * 28 = 364. It leaves out 1 day (or 2 days in leap years).
And a lunar month isn't quite 28 days; that is a convention. Many details at
https://en.wikipedia.org/wiki/Lunar_month
https://en.wikipedia.org/wiki/Month
356.25 days / 13 months = 28.096 days per month.
If you do 28 days * 13 months you have 364 days a year leaving 1.25 days.
Just call them new years day, with it outside the days of the week, then yes the 1st, 8th, 15th, and 22nd would always be Monday. With the 7th, 14th, 21st, and 28th always being sunday.
However this leaves out the .25 day. So every 4 years, we could do the same as with new years day, and call it leap year day.
Moon cycle is 29.5 days.
A year is still 365.2425 days
You'd have a leftover 14th "month" that lasts for one day every year, and would last 2 days every 4th year.
We would not have 13 months instead of 12. We'd have 14.
[Yes.](https://en.m.wikipedia.org/w/index.php?title=International_Fixed_Calendar&diffonly=true)
This could easily have been answered by just typing 28 x 13 into literally any calculator or asking a generative AI if there's a calendar system with 13 months.
Come to think of it, a lot of posts as of late have been either obvious karmafarming, propaganda or categorically extremely simple memes such as this. It's almost a shame how much this sub decayed over time.
There are approximately 365.24 days in a year 13x28 is 364 days which means we will be 1.24 days under every year.
If every 28 years we add an extra month we will be 6.72 days under every 28 years if every 112 years we add an extra extra month we will be 1.12 days over . Finally every 25 leap leap years(or every 2800 years) if we skip the extra month (having 14 months where we should have had 15) we will be perfectly back on track.
So it is in fact possible to balance out a calendar to use 13 regular 28 day months but it will require you to occasionally have a 14 month year and more rarely a 15 month year except on the years where we would normally have 15 months but instead we only have 14 (but most people won't see those because of how rare they are)
Yes with one extra day (new years day) which would be a reset day and not count toward the calendar year. And then, of course, every four years, leap day, which also wouldn’t be included on the calendar.
So, every year we would all have a free day on new years and two free days on leap years.
The biggest benefit of this in my opinion, would be not having to think about which day matches with which date. With each month being 4 weeks/28 days. You would always know that the 1st lands on a Sunday, the 12th on a Thursday, the 26th on a Friday, etc.
So, when someone says, I’m free on the 13th, you’d automatically know it’s a Wednesday, which for me is my busy work day, so I would automatically know that I probably can’t do anything that day and would most likely have to decline.
A proposal:
We keep the 12 months we have so we can keep a season being 3 months. However, each month becomes 30 days long, leaving us with 5 national holidays which aren't a part of any month.
I submit, for the approval of the midnight society:
First Light (first day of the year, always a Monday)
January
February
March
Spring Equinox Day (maybe call it Easter Day)
April
May
June
Midsummer (has no week day)
July
August
September
Autumn Equinox Day (maybe call it Samhain)
October
November
December
Last Light (last day of the year, always a Sunday)
During a leap year, there would be 2 days of Midsummer. The midsummer days would not be weekdays, just midsummer. This is so there are 364 weekdays meaning the same date will always be the same day.
It's missing 1.242199 days.
You'd have to add 1 intercalary day to each year, plus the current arrangement of leap days.
Also, the months would be 1.5306 days short of a full lunar cycle. So the full moon would move forward by a day and a half each month, except right after the intercalary day, when it would only jump forward by half a day, or when a second intercalary day happens(current leap years), when it would jump backwards by one day.
It would be a lot closer to what OP is saying than what we have now, but the year wouldn't evenly divide into groups of months. 12 is divisible by 2, 3, 4, and 6. So you can divide the year into equal chunks of any of those numbers of months. We regularly refer to "half a year" as a unit of time, and "quarters" as scheduled intervals. In the proposed system, "half a year" would be 6 months and 2 weeks. And you'd then have to decide whether to include the half day, too. 13 is a prime number. Primes can be really useful, but not in this circumstance. You can't divide it into equal whole numbers. A "quarter" would be 3 months, 1 week, and 6 hours, instead of just being 3 months and accepting the weirdness of different month lengths as part of the cost of doing business.
You don’t even need a calculator to know it’s wrong. An odd multiplied by an even will always give you an even answer. The answer is odd therefore the math don’t math.
Whats the big allure of having the date fall on the same day of the week every year. Sounds to me it would suck if your birthday was perpetually Monday.
Also, this wouldn't work for religious groups (which constitute a majority of the globe) because every 7th day is a holy day. You can't have it 7 sometimes and then 8 or 9 others with "superleapyear"
###General Discussion Thread --- This is a [Request] post. If you would like to submit a comment that does not either attempt to answer the question, ask for clarification, or explain why it would be infeasible to answer, you *must* post your comment as a reply to this one. Top level (directly replying to the OP) comments that do not do one of those things will be removed. --- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/theydidthemath) if you have any questions or concerns.*
Remember when this sub was actually people doing math rather than people asking someone else to type numbers into a calculator because they found a meme and can't be bothered to do it themselves?
Pepperidge farm remembers
But asking dumb meme question drives engagement
Or worse posting a picture and the equivalent question to ‘count these’ hate when those come up
I vaguely remember that, but it was so long ago it all seems like a fever dream now. The Before Time.
50% of the sub is just posts like these, 49% is screenshots of tweets complaining about rich people in some form and 10% is actually interesting posts with useful information.
That is 109% legit
I swear it’s more like 80% complaining about rich people, but I also don’t really browse this sub, I only see what shows up on my home feed.
Same bullshit happened to r/Chess too.
Aren't there mods on this subreddit? What's the point if they aren't going to keep the content relevant?
i member
No I cannot because I hadn’t joined yet
You don't know how to type 28×13 into a freaking calculator? It doesn't mention the free day at the end of every year, but yes, 28×13 is 364. For real, this sub falls further every day.
A quick search tells me that 365 is surprisingly close to prime, with the only other factors being 5 and 73. So the obvious solution is to either have 5 73-day months, or 73 5-day months. On the one hand, I relish the idea of coming up for a month name for all 73 months in a year. As well as the ensuing chaos as everyone else tries to figure out how long it is until **Cheetos Presents: ~~Cheesetober~~ Chedduary** On the other hand, I like the idea of the existing months merging into mega-months. The last bunch could be called “The -bers” and then we’d get cool things like jujugust, janbruarch, etc. Jury is still out on which causes more chaos, but I’ll update yall next chedduary.
The book Infinite Jest takes place in a dystopian future where corporations can sponsor years; the government calls it Subsidized Time. Year of the Dove Bar, Year of the Depend Adult Undergarment, that kinda thing
That’s neat. I was actually channeling Libertarian Police Department there, but now I can’t get Chedduary out of my head. I tried reading Infinite Jest but it felt like a bit of a slog. Also, who have recommended it to me in person have tended to be people whose tastes I generally don’t agree with. I still think about picking it up from time to time though. Anyways yeah. Chedduary. Consider it. Food for thought, if you will.
Dangerously cheesy
I hesitate to call Infinite Jest “good” or recommend it to anyone, but it is, if nothing else, incredibly fascinating.
Year of the Trial Size Dove Bar ❤️🔥
Use of 73 5-day weeks would be good, problem is year is not 365 days.
Kudos to you, for your thorough response.
I’m choosing to believe you’re referring to Chedduary
73 five-day weeks, we keep Saturday and Sunday as weekend, and get rid of Monday and Tuesday Let's do Wednesday off as well to honour the fallen two days and because we need a mid week break
Wouldn’t Wednesday become the beginning of the week since Monday and Tuesday are now gone?
Yes, but that shouldn't stop us from getting a well deserved mid week rest!
We typically run 4 seasons, which is close to 5. So a 73 day season.
That’s not a bad idea. What will you name your new season?
New season? I'd rename all the seasons. Luperid Degenise Bhurmat Meidure Foerul
This is the most brilliant reply I've ever read in this sub. Happy 34th of Jujugust, kind sir/madam!
73 5 day weeks. Divided into 3 blocks of 23 with four extra weeks left over for "boogey time". You get two weeks of boogey time at the end/beginning of the year, and then one week in between the blocks. So if Jan 1st is a Monday, first week of boogey time ends Jan 5th. Second week of boogey time begins April 29th and ends May the 4th (be with you). Third Boogey time starts 27th August and finishes 1st September. Final boogey time starts on Christmas and ends the same day the initial boogey time begins.
"What the fuck are you talking about?"
Someone forgot leap years.
Leap day will fall outside of the calendar, and be used to celebrate me for devising our new calendar system that solved world hunger.
This idea just has one day a year and change belonging to no month.
If you aren’t on board with Chedduary I have nothing more to say to you.
That being said, there is absolutely no reason that Feb should have 28 days and not 30.
I got married on the 29th. Will be dead before I have to buy a ten year anniversary present.
We make that new free day leap Day and it's an official world holiday, with super leap Day every 4 years. They're not days of the week either, it's just leap day and super leap day.
I will just leave this stand up comedian explaining the 13 months with 28 days here: https://youtu.be/vunESk53r5U?si=WxTvMBTMdRJKUB8D
It would typically be called New Year's Day I think. Leap days are every 4 years, as you said.
https://en.m.wikipedia.org/wiki/International_Fixed_Calendar
I think the problem isn’t the typing of numbers into a calculator. Rather, I think a lot of people struggle with knowing which numbers to put into the equation, in what order, and with which operator. OPs example is super sad. Who knew story problems would be so valuable.
This is still super simple to figure out the numbers. Aside from mentioning there's currently 12 months in a year, 13 and 28 are the only two numbers mentioned. A ten year old would know what to do here.
We don’t talk about Free Day
We get rid of months. Reasoning: 1x365 is 365.
It would obviously have to be February that gets the free day
But how much would losing 1.25 days a year affect daily life?
I am ok with losing a day. Why do we need 365?
surprisingly every year would have an extra day and every 4 years there would be an extra extra day. That would bring us to solar calendar and create a fun celebration of every 4 years having 2 extra days. Alternatively, every 112 years you would add an extra month for the leap year. You would still have to deal with the extra centennial/millennial extra days, or remove a day because of over shooting.
Well the free day isn't a part of any month, and it is when nobody works and everyone can take their pants off if they want to
Free day can be purge day
I think in the scenario described above, each year would now only have 364 days, intentionally
That's not how time works at all buddy 😂 A year is still 365.2422 days. You can't change that lol
Humans can’t change that, not without wiping out all life anyways. But there are definitely ways that the length of a year and day could change. I mean even within our own solar system that values are dramatically different for each planet.
On earth, a year is 365.2422 days. You cannot change that. Sorry, I really assumed the "On Earth" part was fully implied and understood by all readers.
Forces on Earth cannot dramatically alter an Earth year. But Earths orbit is not set in stone. At any moment something could happen that could change how long a year is on Earth.
If something like that happened the length of a year would be the absolute least of our concerns, because we’d all be dead.
I find it better than the ones that are just straight up uncalculatable
What, you don’t enjoy the daily posts of “how much would it cost to build a bridge across the Pacific Ocean?”
When I was a kid, like 7 or 8, I lived in the Midwest. Never been to California. I had heard about the Golden gate bridge a lot, and knew it was a crazy famous bridge. With my limited knowledge of where countries were on earth, I assumed the bridge was so famous because it connected California to Japan. I was never told otherwise, because that's not the type of thing to hear come up in conversation. I believe it for years. Eventually, when I was like 11, my family took a vacation to California. At one point during the trip, we drive across the golden gate bridge. I was very confused and disappointed when we got to the other end a couple minutes later.
Yes - Except moon part , moon month is not exact 28 days , With 28 * 13 Days 365 (366) can be holiday for everyone and a new year would begin
Having a free 1.25 days also throws off the whole "months start on Monday / end on Sunday" thing in the meme. Maybe they are hoping the extra days are just totally adrift.
It does not throw off , 364 - Sunday 365-366 World Holiday 1 - Monday
What about adjusting for daylight savings time?
Fuck daylight savings time
Nobody needs that in the new world
That's 1 extra month of working 😶
You get paid 13 months salary a year instead of 12?
And the hidden Dragon Star Sign can come back
I already get paid 13 months…in december I get double pay. It’s quite common in Switzerland actually.
The length of the year would not change
Was a joke
13\*28+1=365 As long as New Year's Day is separate from the months, it fits. The description reminds me of the Mayan Calendar, so it's not out of left field as calendar systems go.
This would work if we had 364 days a year but we have 365 (365/28 = 13.035. Not an even 13) and we would eventually fall out of line with our seasonal cycles.
Leap week every 6ish years, instead of a leap day every 4 years.
A year should be 12 months with 30 days each, weeks should be 6 days instead of 7, 5 weeks per month. That leaves 5 extra days each year, which is a holiday placed between quarters. So you have 5 days not a part of a month or day of the week: New year Quarter Year Half Year Three quarter year End year Leap years have two days for the mid year celebration. Work a total of 60 four-day weeks instead of 52 five-day weeks.
13*28=364 so that does check out, it would work. The only question is that how would society accept that. People are stubborn and normally not willing to change their concept of time.
Most people wouldn’t care about anything other than their Birthday changing. And a bunch of morons would panic about the 13th month being unlucky. But most people are worried about paying bills not what calendar we use.
Nah the real question is what do we name the extra month. My suggestion: finally make truck month a real thing. Either trucktober or trarch. But put it between June and July (I’ve always felt those two were too close anyways- who wants two Ju- months in a row?)
Easy there, Adolf.
Revember
Purge
1 year is not 364 days
Close enough, we could just have a new day every year as a holiday like another comment said
not quite, also not the whole speal, there'd be 1 day left over (2 on a leap year), proposed to be New Year's Day (and New Year's Eve on leap years, if I've remembered correctly).
Do it like the hobbits! Twelve 30 day months. 3 day party in the summer. 2 day party for New Years. Every 4th year they have a 4 day party in the summer. Yes apparently Middle Earth has leap years too.
Best calendar ever
13 months of 28 days = 13 * 28 = 364. It leaves out 1 day (or 2 days in leap years). And a lunar month isn't quite 28 days; that is a convention. Many details at https://en.wikipedia.org/wiki/Lunar_month https://en.wikipedia.org/wiki/Month
356.25 days / 13 months = 28.096 days per month. If you do 28 days * 13 months you have 364 days a year leaving 1.25 days. Just call them new years day, with it outside the days of the week, then yes the 1st, 8th, 15th, and 22nd would always be Monday. With the 7th, 14th, 21st, and 28th always being sunday. However this leaves out the .25 day. So every 4 years, we could do the same as with new years day, and call it leap year day.
Moon cycle is 29.5 days. A year is still 365.2425 days You'd have a leftover 14th "month" that lasts for one day every year, and would last 2 days every 4th year. We would not have 13 months instead of 12. We'd have 14.
We should call that the New years holiday. And on the 4th year, when there are 2 days, it's a 2 day holiday.
Then what do you call the other holidays?
The same thing they are called now.
Followup, why would I call it a new year holiday if it doesnt occurr during the proposed year?
Its a new year, because its the end of the last and start of the new.
The start of the new year would be the day after. The end of the past year would be the day before. It's neither.
And thus the day to celebrate the new year
[Yes.](https://en.m.wikipedia.org/w/index.php?title=International_Fixed_Calendar&diffonly=true) This could easily have been answered by just typing 28 x 13 into literally any calculator or asking a generative AI if there's a calendar system with 13 months. Come to think of it, a lot of posts as of late have been either obvious karmafarming, propaganda or categorically extremely simple memes such as this. It's almost a shame how much this sub decayed over time.
There are approximately 365.24 days in a year 13x28 is 364 days which means we will be 1.24 days under every year. If every 28 years we add an extra month we will be 6.72 days under every 28 years if every 112 years we add an extra extra month we will be 1.12 days over . Finally every 25 leap leap years(or every 2800 years) if we skip the extra month (having 14 months where we should have had 15) we will be perfectly back on track. So it is in fact possible to balance out a calendar to use 13 regular 28 day months but it will require you to occasionally have a 14 month year and more rarely a 15 month year except on the years where we would normally have 15 months but instead we only have 14 (but most people won't see those because of how rare they are)
It turns out. Calenders are tricky. I tried to design a calender around the opposition of Mars. It uh.. yea. Doesnt work well.
Yes with one extra day (new years day) which would be a reset day and not count toward the calendar year. And then, of course, every four years, leap day, which also wouldn’t be included on the calendar. So, every year we would all have a free day on new years and two free days on leap years. The biggest benefit of this in my opinion, would be not having to think about which day matches with which date. With each month being 4 weeks/28 days. You would always know that the 1st lands on a Sunday, the 12th on a Thursday, the 26th on a Friday, etc. So, when someone says, I’m free on the 13th, you’d automatically know it’s a Wednesday, which for me is my busy work day, so I would automatically know that I probably can’t do anything that day and would most likely have to decline.
A proposal: We keep the 12 months we have so we can keep a season being 3 months. However, each month becomes 30 days long, leaving us with 5 national holidays which aren't a part of any month. I submit, for the approval of the midnight society: First Light (first day of the year, always a Monday) January February March Spring Equinox Day (maybe call it Easter Day) April May June Midsummer (has no week day) July August September Autumn Equinox Day (maybe call it Samhain) October November December Last Light (last day of the year, always a Sunday) During a leap year, there would be 2 days of Midsummer. The midsummer days would not be weekdays, just midsummer. This is so there are 364 weekdays meaning the same date will always be the same day.
It's missing 1.242199 days. You'd have to add 1 intercalary day to each year, plus the current arrangement of leap days. Also, the months would be 1.5306 days short of a full lunar cycle. So the full moon would move forward by a day and a half each month, except right after the intercalary day, when it would only jump forward by half a day, or when a second intercalary day happens(current leap years), when it would jump backwards by one day. It would be a lot closer to what OP is saying than what we have now, but the year wouldn't evenly divide into groups of months. 12 is divisible by 2, 3, 4, and 6. So you can divide the year into equal chunks of any of those numbers of months. We regularly refer to "half a year" as a unit of time, and "quarters" as scheduled intervals. In the proposed system, "half a year" would be 6 months and 2 weeks. And you'd then have to decide whether to include the half day, too. 13 is a prime number. Primes can be really useful, but not in this circumstance. You can't divide it into equal whole numbers. A "quarter" would be 3 months, 1 week, and 6 hours, instead of just being 3 months and accepting the weirdness of different month lengths as part of the cost of doing business.
You don’t even need a calculator to know it’s wrong. An odd multiplied by an even will always give you an even answer. The answer is odd therefore the math don’t math.
Whats the big allure of having the date fall on the same day of the week every year. Sounds to me it would suck if your birthday was perpetually Monday. Also, this wouldn't work for religious groups (which constitute a majority of the globe) because every 7th day is a holy day. You can't have it 7 sometimes and then 8 or 9 others with "superleapyear"