What are the valid options for the date format field in the Preferences?
Specifier Description %% A ‘%’ character %a Abbreviated weekday name %A Full weekday name %b Abbreviated month name %B Full month name %c Shorthand for “%X %x”, the locale format for date and time %d Day of the month as a decimal number (01–31) %e Same as %d but does not print the leading 0 for days 1 through 9 (unlike strftime(), does not print a leading space) %F Milliseconds as a decimal number (000–999) %H Hour based on a 24-hour clock as a decimal number (00–23) %I Hour based on a 12-hour clock as a decimal number (01–12) %j Day of the year as a decimal number (001–366) %m Month as a decimal number (01–12) %M Minute as a decimal number (00–59) %p AM/PM designation for the locale %S Second as a decimal number (00–59) %w Weekday as a decimal number (0–6), where Sunday is 0 %x Date using the date representation for the locale, including the time zone (produces different results from strftime()) %X Time using the time representation for the locale (produces different results from strf
