%a The abbreviated weekday name ("Sun")

%A The full weekday name ("Sunday")

%b The abbreviated month name ("Jan")

%B The full month name ("January")

%d Day of the month (01..31)

%e Day of the month without a leading zero (1..31)

%j Day of the year (001..366)

%m Month of the year (01..12)

%U Week number of the current year, starting with the first Sunday as the first day of the first week (00..53)

%W Week number of the current year, starting with the first Monday as the first day of the first week (00..53)

%w Day of the week (Sunday is 0, 0..6)

%x Preferred representation for the date alone, no time

%y Year without a century (00..99)