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Even on 1), the first day of the week being Sunday (US) and Monday (Europe) screws me up constantly, as someone who is in both worlds now. I often pick the wro

Even on 1), the first day of the week being Sunday (US) and Monday (Europe) screws me up constantly, as someone who is in both worlds now. I often pick the wrong date for meetings because I'm assuming next Monday will be in the first column, not the second. As dumb and simple as it is, when something has been drilled into you since about age 3 its tough to get in the habit of double checking it when it starts becoming inconsistent.

CatMustard 29d ago
This is one of the most annoying ones to me. I recently almost booked a pair of ~2000 euro return flights for the completely wrong dates because the booking site decided to (despite knowing our location and correctly setting currency, currency formatting and language) show it's date picker starting with Sundays. Only caught when I did a last sanity check before I clicked the pay button.
Mtinie 29d ago
That’s illuminating. I was born and have lived in the U.S. my entire life. If you asked me what the first day of the week was, I would immediately respond with “Monday”. I’m going to mull this one over a bit more to figure out where my social education went wrong!
- lbotos 29d ago
  Im in the US and I’d say the week starts on monday but calendar interfaces display a sunday first. https://www.timeanddate.com/calendar/?year=2026&country=9 https://www.timeanddate.com/calendar/?year=2026&country=9 Toggle the calendars here and you’ll see it.
  - Mtinie 29d ago
    Oh, I agree that’s the case, and I’ve noticed it over the years, but never thought deeply on it other than “that’s an annoying preset”
  - goodmythical 28d ago
    Monday as the beginning of the week is the only logically defensible position if you support the weekend. There is only one weekend. One end of the week. It goes at the end as it is definitionally required to do. If Sunday is the end of the weekend, it is the end of the end of the week. The end of the end of the week cannot be the beginning of the week. Sunday comes after Saturday comes after Friday...comes after Monday. Therefore, Monday is the beginning of the week. QED
    - tom_ 28d ago
      The week has two ends. Maybe the people putting Sunday at the start are just trying to cover both options.
      - rubslopes 28d ago
        So it should be called weekends?
        goodmythical 28d ago
        That's my standard response. "If Sunday's at the beginning, then there are two weekends per week."
    - ghaff 28d ago
      Logically, the weekend days belong together on a calendar but that's not how US calendars are typically laid out.
    - eigencoder 28d ago
      I think the weekend could cover the beginning and the end, just like a bookend can be at the beginning or end of the book shelf
      - goodmythical 28d ago
        My shelves all have two bookends. If they only had one, the books would fall off the end without a bookend. But, this is simply mataphorical reasoning. One cannot conflate weeks with bookshelves for many reasons.
  - SAI_Peregrinus 22d ago
    [dead]
- f4c39012 29d ago
  1st joke https://youtube.com/shorts/3p2Apuhj40E https://youtube.com/shorts/3p2Apuhj40E
- xboxnolifes 28d ago
  Officially (or historically, or to banks maybe) it starts Sunday, but to anyone I have ever talked to in the US its definitely Monday. Saturday and Sunday are the weekEND after all.
Joker_vD 28d ago
You know, when you speak language where the word for Tuesday is literally "Seconder" and the word for Friday is "Fifter", it's really difficult to accept that starting to number the days of the week from Sunday is a sensible thing.
- bentley 28d ago
  If you’re referring to Slavic languages, they’re counted from Sunday. • Sunday: “no work” • Monday: “[first] after Sunday” • Tuesday: “second [after Sunday]” • Wednesday: “middle” • Thursday: “fourth [after Sunday]” • Friday: “fifth [after Sunday]” • Saturday: “sabbath” Treating the work week as the start of the calendar week is a 20th century invention, as is the five‐day work week. Historically, Slavic calendars began on Sunday: https://www.russianhistorymuseum.org/wp-content/uploads/2025/03/Tabel-Calendar.jpeg https://www.russianhistorymuseum.org/wp-content/uploads/2025...

CatMustard 29d ago

This is one of the most annoying ones to me. I recently almost booked a pair of ~2000 euro return flights for the completely wrong dates because the booking site decided to (despite knowing our location and correctly setting currency, currency formatting and language) show it's date picker starting with Sundays. Only caught when I did a last sanity check before I clicked the pay button.

Mtinie 29d ago

That’s illuminating. I was born and have lived in the U.S. my entire life. If you asked me what the first day of the week was, I would immediately respond with “Monday”. I’m going to mull this one over a bit more to figure out where my social education went wrong!

lbotos 29d ago
Im in the US and I’d say the week starts on monday but calendar interfaces display a sunday first. https://www.timeanddate.com/calendar/?year=2026&country=9 https://www.timeanddate.com/calendar/?year=2026&country=9 Toggle the calendars here and you’ll see it.
- Mtinie 29d ago
  Oh, I agree that’s the case, and I’ve noticed it over the years, but never thought deeply on it other than “that’s an annoying preset”
- goodmythical 28d ago
  Monday as the beginning of the week is the only logically defensible position if you support the weekend. There is only one weekend. One end of the week. It goes at the end as it is definitionally required to do. If Sunday is the end of the weekend, it is the end of the end of the week. The end of the end of the week cannot be the beginning of the week. Sunday comes after Saturday comes after Friday...comes after Monday. Therefore, Monday is the beginning of the week. QED
  - tom_ 28d ago
    The week has two ends. Maybe the people putting Sunday at the start are just trying to cover both options.
    - rubslopes 28d ago
      So it should be called weekends?
      - goodmythical 28d ago
        That's my standard response. "If Sunday's at the beginning, then there are two weekends per week."
  - ghaff 28d ago
    Logically, the weekend days belong together on a calendar but that's not how US calendars are typically laid out.
  - eigencoder 28d ago
    I think the weekend could cover the beginning and the end, just like a bookend can be at the beginning or end of the book shelf
    - goodmythical 28d ago
      My shelves all have two bookends. If they only had one, the books would fall off the end without a bookend. But, this is simply mataphorical reasoning. One cannot conflate weeks with bookshelves for many reasons.
- SAI_Peregrinus 22d ago
  [dead]
f4c39012 29d ago
1st joke https://youtube.com/shorts/3p2Apuhj40E https://youtube.com/shorts/3p2Apuhj40E
xboxnolifes 28d ago
Officially (or historically, or to banks maybe) it starts Sunday, but to anyone I have ever talked to in the US its definitely Monday. Saturday and Sunday are the weekEND after all.

Joker_vD 28d ago

You know, when you speak language where the word for Tuesday is literally "Seconder" and the word for Friday is "Fifter", it's really difficult to accept that starting to number the days of the week from Sunday is a sensible thing.

bentley 28d ago
If you’re referring to Slavic languages, they’re counted from Sunday. • Sunday: “no work” • Monday: “[first] after Sunday” • Tuesday: “second [after Sunday]” • Wednesday: “middle” • Thursday: “fourth [after Sunday]” • Friday: “fifth [after Sunday]” • Saturday: “sabbath” Treating the work week as the start of the calendar week is a 20th century invention, as is the five‐day work week. Historically, Slavic calendars began on Sunday: https://www.russianhistorymuseum.org/wp-content/uploads/2025/03/Tabel-Calendar.jpeg https://www.russianhistorymuseum.org/wp-content/uploads/2025...