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Palindrome Day 20200202

blog.sumymus.de

51–60 of 187 posts

Re: Palindrome Day 20200202

#51
post #13

The nice thing about today's date, 2020-02-02, is that it is palindrome in three date formats: YYYYMMDD, DDMMYYYY, and MMDDYYYY. This should probably be called "Universal Palindrome Day" because it is a palindrome irrespective of the endianness (big, little, or middle) that is used in various countries. Here is the list of all such dates until the year 9999: 0101-10-10 1010-01-01 1111-11-11 2020-02-02 2121-12-12 3030…

From another comment on this thread

> 20300302, 20400402, etc

https://news.ycombinator.com/item?id=22214936

Re: Palindrome Day 20200202

#52

Earlier quoted context omitted.

I love the term "middle endianness" and how clearly it highlights how nuts the American date notation is. EDIT: fwiw, in my native language, most numbers from 100 and 1000 are pronounced middle endian, so I'm not complaining.

The American date notation is simply a direct reflection of the spoken language. We say "February second, 2020" and we write "2/2/2020". (Contra the root comment, I can't agree that 2/2/2020 is a palindrome.) I don't see this as being crazy or even unusual. When order matters, you invariably want big-endian notation, which is why that notation is acceptable everywhere regardless of the usual native notation. But by t…

That middle-endianness is spoken doesn’t make it better. It’s still crazy.

Starting with the most general and ending with the most specific is a logical order. Doing it the other way round is also logical. But starting with the middle makes no sense.

It doesn’t seem unusual to you because you use it often.

That said I’m German and I realize that German postal addresses are crazy for the same reason. I wish we‘d adopt the Chinese format: country first then province (state), then County then town then neighborhood then street and house.

German addresses are middle endian: street then house number then zip code then city then country. The right order seems to be: city, zip, street, house number. Most general to most specific.

Re: Palindrome Day 20200202

#53
post #21

The Human Palindrome will be born tomorrow and die on 2121-12-12 at the age of 101. And in true palindromic fashion, his life will start and end with diapers.

Fun, clever, and witty comments are increasingly rare here on YC. Thank you for this.

Overdone, silly, and cringy joke comments are leaking over to YC. Please don't let this become the norm.

Re: Palindrome Day 20200202

#55
post #40

Earlier quoted context omitted.

I love the term "middle endianness" and how clearly it highlights how nuts the American date notation is. EDIT: fwiw, in my native language, most numbers from 100 and 1000 are pronounced middle endian, so I'm not complaining.

Little endian notation is somewhat mixed endian itself, because it contains 3 numbers, each number by itself is big endian, but the 3 numbers are arranged in little endian fashion amongst each other.

[deleted]

Re: Palindrome Day 20200202

#57
post #21

The Human Palindrome will be born tomorrow and die on 2121-12-12 at the age of 101. And in true palindromic fashion, his life will start and end with diapers.

Any responsible parent will call him Bob or Anna, of course. Taking surnames into account is going to be a bit harder.

Here's a good resource for anyone becoming a parent today: https://parentinghealthybabies.com/palindrome-names/

Re: Palindrome Day 20200202

#58
post #7

Depending on how you write your dates, 20211202 is the next one.

Isn't that the next one regardless, just when it is depends on how you write dates?

you can write dates however you want to, it's just a made up notation. It would not be difficult to come up with way of writing dates which is almost always a palindrome.

Re: Palindrome Day 20200202

#59

Earlier quoted context omitted.

The American date notation is simply a direct reflection of the spoken language. We say "February second, 2020" and we write "2/2/2020". (Contra the root comment, I can't agree that 2/2/2020 is a palindrome.) I don't see this as being crazy or even unusual. When order matters, you invariably want big-endian notation, which is why that notation is acceptable everywhere regardless of the usual native notation. But by t…

> We say "February second, 2020" ... Interesting. We (Australian) say "Second of Feb, 2020". ;)

Spanish is "Dos de Febrero de 2020"

Re: Palindrome Day 20200202

#60

Earlier quoted context omitted.

The American date notation is simply a direct reflection of the spoken language. We say "February second, 2020" and we write "2/2/2020". (Contra the root comment, I can't agree that 2/2/2020 is a palindrome.) I don't see this as being crazy or even unusual. When order matters, you invariably want big-endian notation, which is why that notation is acceptable everywhere regardless of the usual native notation. But by t…

> We say "February second, 2020" ... Interesting. We (Australian) say "Second of Feb, 2020". ;)

In Dutch we say "2 februari 2020". So littleendian is perfectly natural for us.
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