17 August 2025

17 August 2025 is ...

• 229th day of the year. There are then 136 days left in 2025.
• 33rd Sunday of 2025.
• on the 34th week of 2025 (using ISO standard week number calculation).
• Birthstone for this day: Peridot

17 August 2025 South Africa Holidays & Popular Observances

There are no major holidays or observances in South Africa for this date.

17 August 2025 Popular Holidays & Observances Worldwide

• Aniversario del General José de San Martín - Argentina
• Black Cat Appreciation Day - Popular in: Canada, United Kingdom, United States
• Día del Ingeniero (Colombia) - Colombia
• Día de la Bandera - Bolivia
• Día del Abuelo y del Niño - Argentina
• Slovsles in Prekmurje Incorporated into the Mother Nation (Slovšle v Prekmurju, Ki So Vključene v Materino Narodnost) - Slovenia
• Dia do Avô - Latin America
• Indonesia Independence Day - Australia
• National Nonprofit Day - United States