%a 

Abbreviated day of the week (3 chars)

%d 

Day of month as decimal number (01-31)

%S 

Second as decimal number (00-59) 

%M 

Minute as decimal number (00-59) 

%H 

Hour in 24-hour format (00-23) 

%Y 

Year with century, as decimal number, up to 2099 

%b 

Abbreviated month name (3 chars)

%h 

Abbreviated month name (3 chars)  

%T 

Time in "HH:MM:SS" format 

%X 

Time in "HH:MM:SS" format 

%A 

Day of the week, full name 

%B 

Month, full name 

%C 

"%a %b %e %H:%M:%S %Y"  

%c 

Date and time in "%m/%d/%y %H:%M:%S" format 

%D 

Date in "%m/%d/%y" format 

%e 

Day of month as decimal number (1-31) without leading zeros 

%I 

Hour in 12-hour format (01-12) 

%j 

Day of year as decimal number (001-366) 

%k 

Hour in 24-hour format (0-23) without leading zeros 

%l 

Hour in 12-hour format (1-12) without leading zeros 

%m 

Month as decimal number (01-12) 

%n 

Line feed 

%p 

a.m./p.m. indicator for 12-hour clock 

%R 

Time in "%H:%M" format 

%r 

Time in "%I:%M:%S %p" format 

%t 

Tab 

%U 

Week of year as decimal number, with Sunday as first day of week (00-51) 

%w 

Weekday as decimal number (0-6; Sunday is 0) 

%W 

Week of year as decimal number, with Monday as first day of week (00-51) 

%x 

Date in "%m/%d/%y" format 

%y 

Year without century, as decimal number (00-99) 

%% 

Percent sign