17 April 2021

• 107th day of the year. There were then 258 days left in 2021.
• 16th Saturday of 2021.
• on the 15th week of 2021 (using ISO standard week number calculation).
• 29th day of Spring. There were 65 days left till Summer.
• Birthstone for this day: Diamond and Crystal

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

• National Haiku Poetry Day - United States
• Bat Appreciation Day - Popular in: United Kingdom, Canada
• Burmese New Year - United States
• Hemophilia Day - India
• Día Mundial del Malbec - Popular in: Argentina