4 ottobre 2523

• Queen's Birthday (1st Monday in October) (Australia)
  4 ottobre
• Russian Aerospace Defence Forces Day (Russia)
  4 ottobre

4 ottobre 2523 is the 277^th day of the year 2523 in the Gregorian calendar.
The day of the week is Monday. There are 88 days remaining until the end of this year.
Chinese New Year 2523 will be from 17 febbraio to 3 marzo,
Muslim New Year - 19 marzo,
Jewish New Year, or Rosh Hashanah - from 11 settembre to 12 settembre.