These are formatting strings for use in the TO_DATE function.
- CC=Two-digit century number
- YYYY, YYY, YY, or Y=4-digit, 3-digit, 2-digit, or 1-digit year number
- Y,YYY=4-digit year number with comma
- Q=Quarter number (1 to 4)
- MONTH, Month, or month=Month name (uppercase, mixed-case, lowercase, blank-padded to 9 characters)
- MON, Mon, or mon=Abbreviated month name (uppercase, mixed-case, lowercase, blank-padded to 9 characters)
- MM=Month number (01-12)
- W=Week of month (1–5, the first week starts on the first day of the month)
- WW=Week number of year (1–53, the first week starts on the first day of the year)
- IW=ISO week number of year (the first Thursday of the new year is in week 1)
- DAY, Day, or day=Day name (uppercase, mixed-case, lowercase, blank-padded to 9 characters)
- DY, Dy, or dy=Abbreviated day name (uppercase, mixed-case, lowercase, blank-padded to 9 characters)
- DDD=Day of year (001–366)
- DD=Day of month as a number (01–31)
- D=Day of week (1–7 Sunday is 1)
- J=Julian day (days since January 1, 4712 BC)
- HH24=Hour (24-hour clock, 00–23)
- HH or HH12=Hour (12-hour clock, 01–12)
- MI=Minutes (00–59)<br>SS=Seconds (00–59)
- MS=Milliseconds (.000)<br>US=Microseconds (.000000)
- AM or PM, A.M. or P.M., a.m. or p.m., am or pm=Upper and lowercase meridian indicators (for 12-hour clock)
- TZ, tz=Upper and lowercase time zone abbreviation
Note: for use in the str_to_date function, see the following documentation: https://support.lityxiq.com/074111-DateTime-Formatting-Strings-for-str_to_date.