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Show HN: Weekle – a web app to learn how to calculate the day of the week

benjoffe.com

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Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#11

Post by benjoffe »

midasuni wrote: post #3

First question was “08/10/2023” The majority of the world uses little endian, so the 8th day of the 10th month of the 2023rd year. 8th October is Sunday, as I know that because it’s the same day as 9th of May. However experiments E has told me that much of the internet uses the minority American view of “middle endian” Probably worth making it clear.

Thanks, there is some attempt in the code to auto select US/Canada date format if the user's timezone is in the USA or Canada, but I didn't actually test it to see if it is activated correctly. Any US user's able to chime in if it does?

Even if it works, I'll probably take your suggestion add a tip below the date to clarify the date format for the user's first session.

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#12

Post by benjoffe »

Retr0id wrote: post #8
connordoner wrote: post #2

I love the bit that sticks out on desktop with the QR code. Stellar work, Ben!

That's funny, I actually came here to complain about that. I find it visually distracting and there was no obvious way to dismiss it, so I had to use a content blocker.

Thanks, I'll add a dismiss button to that popout soon.

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#13

Post by gcanyon »

scotteh wrote: post #7

This looks easier to memorise than another method: https://en.wikipedia.org/wiki/Doomsday_rule Nice work on the site!

Some years ago I tried to simplify the Doomsday algorithm here: https://gcanyon.wordpress.com/2013/04/09/a-better-way-to-cal...

I don't think that's simpler than the algorithm at weekle, but in case anyone is curious.

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#14

Post by robobro »

rahimnathwani wrote: post #10
robobro wrote: post #9

Earlier quoted context omitted.

How is it easier? I can do Doomsday in about 5 seconds for any year AD 1800 - 2200

I don't think I'll spend the time to memorize the part for the anchor days, but the observation that March 0, 4/4, 6/6, 8/8, 10/10, 12/12 all land on the same day will definitely come in handy.

There's other mnemonics too, "I work 9-5 at the 7/11" and the observation that Jan 3 (normal) and Jan 4 (leap) can be remembered as, "3 times out of 4, it's January 3rd; the 4th, it's Jan 4th"

Silly mnemonics but it's something. The design about even number days all landing on March 0 / last day of Feb is a good and simple one. I don't know what Weekle is innovating -- instead of using an established system of mnemonics and calculations, he just presents his own table with no comments. Maybe his inspiration was to say, "hey guys, I made my own date calculation system" to impress people who don't know about Doomsday?

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#15

Post by nonethewiser »

benjoffe wrote: post #11
midasuni wrote: post #3

First question was “08/10/2023” The majority of the world uses little endian, so the 8th day of the 10th month of the 2023rd year. 8th October is Sunday, as I know that because it’s the same day as 9th of May. However experiments E has told me that much of the internet uses the minority American view of “middle endian” Probably worth making it clear.

Thanks, there is some attempt in the code to auto select US/Canada date format if the user's timezone is in the USA or Canada, but I didn't actually test it to see if it is activated correctly. Any US user's able to chime in if it does? Even if it works, I'll probably take your suggestion add a tip below the date to clarify the date format for the user's first session.

It did not default for me.

Im in the US, Eastern TZ. Defaulted to English international.

Cool web app btw. I like the whole idea. Just a neat little self contained lesson.

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#18

Post by opan »

midasuni wrote: post #3

First question was “08/10/2023” The majority of the world uses little endian, so the 8th day of the 10th month of the 2023rd year. 8th October is Sunday, as I know that because it’s the same day as 9th of May. However experiments E has told me that much of the internet uses the minority American view of “middle endian” Probably worth making it clear.

Year-Month-Day (YYYY-MM-DD) is the international standard and ought to be used in any new projects.

Re: Show HN: Weekle – a web app to learn how to calculate the day of the week

#19

Post by jbaber »

I've found the Month's First Sunday method[1] (a mild simplification of the Doomsday Algorithm including the odd-plus-eleven innovation) easiest, fastest, and most practical. I'm not insisting on it, just great for me, and I wish it were better known.

[1]: https://firstsundaydoomsday.blogspot.com/2011/01/learn-by-ex...

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