17 agosto 2780

• Day of Air Fleet of Russia (Russia)
  17 agosto
• Unification of Prekmurje Slovenes with the Mother Nation (Slovenia)
  17 agosto

17 agosto 2780 is the 230^th day of the year 2780 in the Gregorian calendar.
The day of the week is Sunday. There are 136 days remaining until the end of this year.
Chinese New Year 2780 will be from 28 gennaio to 11 febbraio,
Muslim New Year - 27 aprile,
Jewish New Year, or Rosh Hashanah - from 22 settembre to 23 settembre.