• Michael Ossipoff
    1.7k
    This is another poll, between two WeekDate calendars.

    A WeekDate calendar is a calendar whose date consists of the week-of-the-year and the day-of-the-week. They differ from eachother by their year-start rules.

    Both of these two calendars use versions of the brief
    Nearest-Monday year-start rule.

    Today, January 31st, corresponds to the following dates in those two calendars:

    ISO WeekDate:

    5 Th

    ...Thursday of the 5th week of the calendar-year that started with the Monday closest to Gregorian January 1st.

    South-Solstice WeekDate:

    6 Th

    ..Thursday of the 6th week of the calendar year that started with the Monday that started closest to the South-Solstice.

    ...or closest to an _approximation_ to the South-Solstice, based on the assumption that South-Solstices occur exactly every 365.2422 days...starting from the actual South-Solstice of Gregorian 2017.

    (The above two versions of South-Solstice WeekDate are a purely astronomic version, and an arithmetical version. Both give the same dates during this year (and will for quite some time). The astronomic version is simpler to state, but the arithmetical version can be more convenient, as it doesn't depend on annual astronomical-observations or orbital-calculations. For example, a computer program could automatically write dates for any year without any outside input.)

    ---------------------------------

    I previously did polls, here and there, about ISO WeekDate vs Hanke-Henry. ISO WeekDate was the unanimous winner.

    So now I'd like to find out which people prefer: South-Solstice WeekDate, vs ISO WeekDate.

    ISO WeekDate's advantages:

    It's already in wide international use by governments and companies, meaning that sofware for it is already available and distributed. It's pegged to the Roman-Gregorian Calendar, of which printed and digital copies are readily-available and close-to hand for everyone.

    South-Solstice WeekDate advantages:

    It's a free-standing, self-contained, astronomically-based calendar. It doesn't depend on our current Roman-Gregorian Calendar.

    Because its year starts near the South-Solstice (Winter-Solstice north of the equator, and Summer-Solstice south of the equator), its week-number measures time from that solstice...giving an indication of solar ecliptic-longitude, something that determines solar-declination, which in turn is the cause of our annual seasons.

    ----------------------------------

    So: Which do you like better:

    South-Solstice WeekDate, or ISO WeekDate?

    Michael Ossipoff
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