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Thunderbird ignoring multiple holidays on same day

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I recently subscribed to the TB calendar for USA holidays. I reported a problem with the calendar itself and got no response to my last reply ([https://support.mozilla.org/en-US/que.../1438331|here]).

There is also a problem with the way TB displays holidays when more than one appears on the same date for the same region (i.e., where UID:<xx> is the same), possibly also depending on the CATEGORIES or CLASS codes, though I didn't check for that.

For example, for Feb. 11, 2024, TB shows "International Day of Women and Girls in Science" (UID:un), "Super Bowl" (UID:us), and "World Day of the Sick" (UID:world). It does not show "Lunar New Year," which appears in the calendar with UID:us. It appears that when there is more than one holiday on a given date for a given region (US in this case), it displays only one.

This is also the case for May 27, 2024, which is not only "Decoration Day" (UID:us), but is also "Jefferson Davis' Birthday" (UID:us), but TB shows only Decoration Day. (And the calendar has no entry for "Memorial Day," which is the federal holiday on that date. That was the original problem I asked about.)

The entries are listed below for the calendar I downloaded from TB.

=============================================================

Feb. 11 entries:

BEGIN:VEVENT SUMMARY:Lunar New Year DTSTART;VALUE=DATE:20240210 DTEND;VALUE=DATE:20240211 DTSTAMP:20240119T095053Z UID:us/lunar-new-year-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Observance - Lunar New Year marks the first day of the New Yea

r in the Chinese calendar.

LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:International Day of Women and Girls in Science DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:un/international-day-of-women-and-girls-in-science-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:United Nations observance - The International Day of Women and

 Girls in Science is a UN holiday to recognize the critical role women and
 girls play in science and technology communities.

LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:World Day of the Sick DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:world/world-day-of-the-sick-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Worldwide observance - World Day of the Sick is a global event

 when people remember or pray for the sick.

LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:Super Bowl DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:us/super-bowl-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Sporting event - The Super Bowl is the championship game of th

e National Football League (NFL) in the United States. It is played every 
year in February.

LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT

==========================================================

May 27 Entries

BEGIN:VEVENT SUMMARY:Decoration Day (AK\, AL\, AR\, AZ\, CA) DTSTART;VALUE=DATE:20240527 DTEND;VALUE=DATE:20240528 DTSTAMP:20240119T095054Z UID:us/memorial-day-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:State Holiday - Memorial Day commemorates all Americans who ha

ve died in military service for the United States.

LAST-MODIFIED:20240119T095054Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:Jefferson Davis' Birthday (Mississippi) DTSTART;VALUE=DATE:20240527 DTEND;VALUE=DATE:20240528 DTSTAMP:20240119T095054Z UID:us/jefferson-davis-birthday-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Local observance - Jefferson Davis' Birthday\, also known as J

efferson Davis Day\, is a state holiday in Alabama in the United States.

LAST-MODIFIED:20240119T095054Z TRANSP:transparent END:VEVENT

I recently subscribed to the TB calendar for USA holidays. I reported a problem with the calendar itself and got no response to my last reply ([[https://support.mozilla.org/en-US/questions/1438331|here]]). There is also a problem with the way TB displays holidays when more than one appears on the same date for the same region (i.e., where UID:<xx> is the same), possibly also depending on the CATEGORIES or CLASS codes, though I didn't check for that. For example, for Feb. 11, 2024, TB shows "International Day of Women and Girls in Science" (UID:un), "Super Bowl" (UID:us), and "World Day of the Sick" (UID:world). It does '''not''' show "Lunar New Year," which appears in the calendar with UID:us. It appears that when there is more than one holiday on a given date for a given region (US in this case), it displays only one. This is also the case for May 27, 2024, which is not only "Decoration Day" (UID:us), but is also "Jefferson Davis' Birthday" (UID:us), but TB shows only Decoration Day. (And the calendar has no entry for "Memorial Day," which is the federal holiday on that date. That was the original problem I asked about.) The entries are listed below for the calendar I downloaded from TB. ========================================================================= Feb. 11 entries: BEGIN:VEVENT SUMMARY:Lunar New Year DTSTART;VALUE=DATE:20240210 DTEND;VALUE=DATE:20240211 DTSTAMP:20240119T095053Z UID:us/lunar-new-year-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Observance - Lunar New Year marks the first day of the New Yea r in the Chinese calendar. LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:International Day of Women and Girls in Science DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:un/international-day-of-women-and-girls-in-science-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:United Nations observance - The International Day of Women and Girls in Science is a UN holiday to recognize the critical role women and girls play in science and technology communities. LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:World Day of the Sick DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:world/world-day-of-the-sick-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Worldwide observance - World Day of the Sick is a global event when people remember or pray for the sick. LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:Super Bowl DTSTART;VALUE=DATE:20240211 DTEND;VALUE=DATE:20240212 DTSTAMP:20240119T095053Z UID:us/super-bowl-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Sporting event - The Super Bowl is the championship game of th e National Football League (NFL) in the United States. It is played every year in February. LAST-MODIFIED:20240119T095053Z TRANSP:transparent END:VEVENT ====================================================================== May 27 Entries BEGIN:VEVENT SUMMARY:Decoration Day (AK\, AL\, AR\, AZ\, CA) DTSTART;VALUE=DATE:20240527 DTEND;VALUE=DATE:20240528 DTSTAMP:20240119T095054Z UID:us/memorial-day-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:State Holiday - Memorial Day commemorates all Americans who ha ve died in military service for the United States. LAST-MODIFIED:20240119T095054Z TRANSP:transparent END:VEVENT BEGIN:VEVENT SUMMARY:Jefferson Davis' Birthday (Mississippi) DTSTART;VALUE=DATE:20240527 DTEND;VALUE=DATE:20240528 DTSTAMP:20240119T095054Z UID:us/jefferson-davis-birthday-2024 CATEGORIES:Holidays CLASS:public DESCRIPTION:Local observance - Jefferson Davis' Birthday\, also known as J efferson Davis Day\, is a state holiday in Alabama in the United States. LAST-MODIFIED:20240119T095054Z TRANSP:transparent END:VEVENT

All Replies (1)

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The correct link is here