Day Guide for Monday August 11th 2025 What are the holidays on August 11th 2025?

This is our day guide for Monday August 11th 2025 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?

Holidays on August 11th 2025

Chad: Independence Day

On 11 August 1960, Chad gained its independence from France

Ecuador: Independence Day

Marks Quito's declaration of independence from Spain in 1809

Grenada: Carnival Monday

This Carnival in August has its roots in the Catholic Carnival observed at the start of Lent

Japan: Mountain Day

A new holiday since 2016, celebrating the nation's mountains. Mountain Day is intended is to provide “opportunities to get familiar with mountains and appreciate blessings from mountains".

Samoa: Father's Day

Father's Day in Samoa is a public holiday on the Monday after the second Sunday in August

Thailand: H.M. Queen Mother's Birthday Holiday

This holiday marks the birthday of the late queen mother of Thailand, Queen Sirikit.

Public sector only

USA (regional): Victory Day

Marks victory over Japan on August 15th 1945. State and local government offices are closed. Federal offices remain open.

Zimbabwe: Heroes' Day

Honours those who gave their lives in Zimbabwe's struggle for independence

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General Information for August 11th 2025
There are 8 public holidays today.
Day 223 of 2025
142 days left in 2025
Week 33 of the year
On this Day in History
1919 - The constitution of the Weimar Republic is adopted.
1804 - Francis II assumes the title of first Emperor of Austria.
355 - Claudius Silvanus, accused of treason, proclaims himself Roman Emperor against Constantius II.
480 BC - The Battle of Thermopylae is fought over three days, but on this day the last Greek contingents - 300 Spartans, 700 Thespians and 400 Thebans - are surrounded and destroyed by the Persian Army, signalling the end of the battle.