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You're begging the question. [1] "Feb 29 + 1 year" is verbatim restatement. --- You can say Feb 29 + 365 days = Feb 28. (And Feb 29 + 730 days = Feb 27.) --

You're begging the question. [1] "Feb 29 + 1 year" is verbatim restatement. --- You can say Feb 29 + 365 days = Feb 28. (And Feb 29 + 730 days = Feb 27.) --- EDIT: Note that in the context of birthdays, people use "calendar years," not "unit of time which is ~1 revolution around the sun." Birthdays aren't celebrated every X million seconds after the moment of birth. They are celebrated the same day each calendar year -- notwithstanding the fuzzy concept of "same day" for incongruent calendar years. There's no singuar right answer, but that is the core question: "what is the same day next (calendar) year?" [1] https://en.wikipedia.org/wiki/Begging_the_question https://en.wikipedia.org/wiki/Begging_the_question

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quietbritishjim 3y ago
> Feb 29 + 365 days = Feb 28. Correct. > And Feb 29 + 730 days = Feb 27 Incorrect. It's Feb 28 again. In a normal, non-leap year, if you add 365 days then you get back to the same date.
- paulddraper 3y ago
  Sorry, typo I meant that Feb 28 + 730 days = Feb 27 (sometimes)
mark-r 3y ago
> Birthdays aren't celebrated every X million seconds after the moment of birth. As a surprise for a friend of mine, I threw him a gigasecond party on the day he turned 1000 million seconds old. Yes he was surprised, and a good time was had by all.
azalazar 3y ago
Many people say: Happy turn around the sun! and 365 is not the length of a year is the length of some years so, who knows... I'm against time zones and pro 28 days months and a couple of free days :D
js2 3y ago
> what is the same day next (calendar) year?" When I wrote "+ 1 year" I meant year to represent 365 or 365.25 days, not "the same day next year.": >>> from datetime import date, timedelta >>> year = timedelta(days=365.25) >>> date(2024, 2, 29) + year datetime.date(2025, 2, 28) You may have interpreted it as begging the question, but it was not my intent—though I admit my formulation was ambiguous. > Note that in the context of birthdays, people use "calendar years," not "unit of time which is ~1 revolution around the sun." You've never heard someone say they've celebrated another trip around the Sun? I literally have a photo from 2007 of my daughter in Montessori celebrating her birthday by holding a globe and walking around a candle representing the Sun. I think most people probably don't really think about whether it's a calendar year or astronomical year because for most people, they are usually equivalent and it doesn't matter. But that's all beside the point. All I meant to point out is that I disagree that March is more logical. I don't think logic points us to one month or the other. You may feel March is more logical, but I don't accept your priors, so for me March is not more logical than February.

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quietbritishjim 3y ago

> Feb 29 + 365 days = Feb 28. Correct. > And Feb 29 + 730 days = Feb 27 Incorrect. It's Feb 28 again. In a normal, non-leap year, if you add 365 days then you get back to the same date.

paulddraper 3y ago
Sorry, typo I meant that Feb 28 + 730 days = Feb 27 (sometimes)

mark-r 3y ago

> Birthdays aren't celebrated every X million seconds after the moment of birth. As a surprise for a friend of mine, I threw him a gigasecond party on the day he turned 1000 million seconds old. Yes he was surprised, and a good time was had by all.

azalazar 3y ago

Many people say: Happy turn around the sun! and 365 is not the length of a year is the length of some years so, who knows... I'm against time zones and pro 28 days months and a couple of free days :D

js2 3y ago

> what is the same day next (calendar) year?" When I wrote "+ 1 year" I meant year to represent 365 or 365.25 days, not "the same day next year.": >>> from datetime import date, timedelta >>> year = timedelta(days=365.25) >>> date(2024, 2, 29) + year datetime.date(2025, 2, 28) You may have interpreted it as begging the question, but it was not my intent—though I admit my formulation was ambiguous. > Note that in the context of birthdays, people use "calendar years," not "unit of time which is ~1 revolution around the sun." You've never heard someone say they've celebrated another trip around the Sun? I literally have a photo from 2007 of my daughter in Montessori celebrating her birthday by holding a globe and walking around a candle representing the Sun. I think most people probably don't really think about whether it's a calendar year or astronomical year because for most people, they are usually equivalent and it doesn't matter. But that's all beside the point. All I meant to point out is that I disagree that March is more logical. I don't think logic points us to one month or the other. You may feel March is more logical, but I don't accept your priors, so for me March is not more logical than February.