13 December 2025

• 347th day of the year. There are then 18 days left in 2025.
• 50th Saturday of 2025.
• on the 50th week of 2025 (using ISO standard week number calculation).
• Birthstone for this day: Turquoise & Blue Topaz

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

• Italy: Saint Lucia's Day (Il giorno di Santa Lucia) - Popular in: United Kingdom, Denmark, Spain, Norway, Sweden
• Republic Day (Jum ir-Repubblika) - Malta
• National Cocoa Day - United States
• National Day Of The Horse - United States