National Days This Week, Dec. 7-13, 2026: Pearl Harbor Day and 14 More

Fifteen official observances fall between Monday, Dec. 7 and Sunday, Dec. 13, 2026, and Thursday, Dec. 10 holds two of them: Human Rights Day and, in the UK, Christmas Jumper Day. Each comes from the United Nations (UN) observances list, U.S. law, a church calendar or an organizer’s own page. A planner for the week follows the table.

Only days with a named setter are listed. Commercial “national food days” are left out, and so are the Nobel Prize day on Dec. 10 and the National Guard birthday on Dec. 13, because we found no official page we could read for either. Hanukkah began at sundown on Friday, Dec. 4, so it runs through the whole week and shows on its last two days.

Observances by day, Dec. 7-13, 2026

Date	Weekday	Observance	Set by	Our story
Dec. 7	Monday	National Pearl Harbor Remembrance Day	36 U.S. Code 129	Pearl Harbor Remembrance Day 2026
Dec. 7	Monday	International Civil Aviation Day	UN list
Dec. 7	Monday	St Ambrose (memorial)	Liturgy Office of England and Wales
Dec. 8	Tuesday	Immaculate Conception	U.S. bishops’ holy day list; solemnity on the England and Wales calendar	Immaculate Conception 2026
Dec. 9	Wednesday	International Anti-Corruption Day	UN list
Dec. 9	Wednesday	International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime	UN list
Dec. 9	Wednesday	St Juan Diego Cuahtlatoatzin	Liturgy Office of England and Wales
Dec. 10	Thursday	Human Rights Day	UN	Human Rights Day 2026
Dec. 10	Thursday	Christmas Jumper Day (UK)	Save the Children UK	Christmas Jumper Day 2026
Dec. 11	Friday	International Mountain Day	UN list; Food and Agriculture Organization (FAO)
Dec. 11	Friday	Hanukkah, eighth candle	Hebcal	Hanukkah 2026
Dec. 12	Saturday	International Day of Neutrality	UN list
Dec. 12	Saturday	International Universal Health Coverage Day	UN list
Dec. 12	Saturday	Our Lady of Guadalupe	Liturgy Office of England and Wales	Our Lady of Guadalupe Day 2026
Dec. 12	Saturday	Hanukkah ends at nightfall	Hebcal	Hanukkah 2026
Dec. 13	Sunday	Third Sunday of Advent	Liturgy Office of England and Wales

Hanukkah has two rows and counts once, which makes 15 observances in 16 rows.

Monday and Tuesday: Pearl Harbor and the Immaculate Conception

The law says: “December 7 is National Pearl Harbor Remembrance Day.” Under 36 U.S. Code 129 the flag goes to half-staff each Dec. 7. The 2025 proclamation was dated Dec. 5, 2025; the 2026 proclamation has not been issued as of Nov. 13. Our Pearl Harbor story has the rest. The UN list shows International Civil Aviation Day on 07 Dec; the International Civil Aviation Organization (ICAO) theme for 2026 is not yet announced.

The Liturgy Office of England and Wales lists “Tuesday | 8 | The Immaculate Conception of the Blessed Virgin Mary | solemnity”. In the United States, the United States Conference of Catholic Bishops (USCCB) lists “December 8, the solemnity of the Immaculate Conception” among its holy days of obligation. The USCCB rule that lifts the Mass obligation on a Saturday or Monday names only Jan. 1, Aug. 15 and Nov. 1, as our Immaculate Conception story explains.

Wednesday and Thursday: corruption, genocide, human rights and jumpers

The UN list shows two days on 09 Dec: International Anti-Corruption Day and the International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime. The 2026 theme of the Anti-Corruption Day is not yet announced from a source we could confirm.

The UN’s Human Rights Day page gives the 2026 theme as “Making Humanity Together” with the line “Human rights are our shared story. Our shared power. Our shared future.” The day marks the Universal Declaration of Human Rights, proclaimed 10 December 1948; see Human Rights Day 2026.

Save the Children UK says: “The official date is Thursday 10 December 2026” for Christmas Jumper Day. It is a UK charity day, and our Christmas Jumper Day planner covers it.

Friday to Sunday: mountains, Hanukkah and Guadalupe

The UN lists International Mountain Day on 11 Dec. The FAO gives the 2026 theme as “Mountain pastoralists: Sustaining rangelands, knowledge and livelihoods”. Its page also says the 2026 observance event is in New York on 15 December, so the event date differs from the Dec. 11 day.

Hebcal gives the eighth candle as “Friday, December 11”. It says Chanukah “begins at sundown on Friday, 4 December 2026 and ends at nightfall on Saturday, 12 December 2026”; our Hanukkah 2026 story has the dates. Hebcal’s page gives no clock times, so none are printed here.

Saturday, Dec. 12 also carries two UN days, the International Day of Neutrality and International Universal Health Coverage Day. The England and Wales calendar reads “Saturday | 12 | Weekday of Advent, Our Lady of Guadalupe”; see Our Lady of Guadalupe Day 2026. The same calendar lists “Sunday | 13 | 3rd Sunday of Advent”.

Week planner for Dec. 7-13, 2026

The one-page planner counts down to the Third Sunday of Advent on Dec. 13 and groups each day by setter in three columns: UN days, U.S. law and holidays, and organizers and churches. Each row carries the source’s own words, with a Done box and space for notes. St Ambrose, St Juan Diego and the Third Sunday of Advent are in the table only, because the sheet carries each day’s quoted source line and the Liturgy Office gives those three as bare numbers. Pair it with the December 2026 printable calendar or a printable weekly calendar. For the week before, see national days for Nov. 30-Dec. 6.