3 October 2025

• 276th day of the year. There are then 89 days left in 2025.
• 40th Friday of 2025.
• on the 40th week of 2025 (using ISO standard week number calculation).
• Birthstone for this day: Opal and Tourmaline

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

• World Smile Day - Popular in: United States, India, United Kingdom, Canada, Mexico
• National Boyfriend Day - Popular in: United States, United Kingdom, Canada, Australia
• German Unity Day (Tag der Deutschen Einheit) - Germany
• Mean Girls Day - Popular in: United States, United Kingdom, Canada
• Día del Odontólogo - Argentina