17 maggio 1920

• Constitution Day (Nauru)
  17 maggio
• International Day Against Homophobia, Transphobia and Biphobia
  17 maggio

17 maggio 1920 is the 138^th day of the year 1920 in the Gregorian calendar.
The day of the week is Monday. There are 228 days remaining until the end of this year.
Chinese New Year 1920 will be from 20 febbraio to 5 marzo,
Muslim New Year - 14 settembre,
Jewish New Year, or Rosh Hashanah - from 13 settembre to 14 settembre.