All date formats in this writeup use the Gregorian calendar system.
The examples given are for Tuesday, February 8, 2000 (the local date of when I created this writeup).
Other locations may use the given date format besides the places I list.

my short format (with "checksum")
"year.month.date_of_month.nday_of_week" (the days of week are 0=Sunday, 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday) - "2000.02.08.n2"

full or long (USA)
"day_of_week, month date_of_month, year" - "Tuesday, February 8, 2000"

short (USA)
"month_number/date_of_month/year_2_digits" (the final "/" and year may be omitted) - "2/8/00" or "2/8" (note that this is format is not Y2k compliant)

short (Europe)
"date_of_month/month_number/year_2_digits" (the final "/" and year may be omitted) - "8/2/00" or "8/2" (note that this is format is not Y2k compliant)

Note that sometimes short European and USA formats can be confused for each other, so they may be incorrectly read as August 2, 2000.