September 9, 2027

• 252nd day of the year. There are then 113 days left in 2027.
• 36th Thursday of 2027.
• on the 37th week of 2027 (using US standard week number calculation).
• 81st day of Summer. There are 14 days left till Fall.
• Birthstone for this day: Sapphire

There are no major holidays or observances in the United States for this date.

• Children's Day (Día del Niño) - Costa Rica
• Genevan Prayer Day (Fasten Genf) - Switzerland
• Day of remembrance of the missing sailors at the sea (Giornata della memoria dei marinai scomparsi in mare) - Italy
• 999 Day UK - United Kingdom
• Dia do Administrador - Brazil
• RUOK? (Are You Okay Day) - Australia