%%a - Abbreviated weekday name.

%%A - Full weekday name.

%%b - Abbreviated month name.

%%B - Full month name."

%%d - Day of the month [01,31]."

%%j - Day of the year [001,366]."

%%H - Hour (24-hour clock) [00,23]."

%%I - Hour (12-hour clock) [01,12]."

%%M - Minute [00,59]."

%%p - Equivalent of either AM or PM."

%%S - Seconds [00,61]."

%%w - Weekday number [0(Sunday),6]."

%%y - Year without century [00,99]."

%%Y - Year with century."

%%m - Month number [01,12]."

1. %%b, %%B ==> Dec, December

2. %%a ,%%A ==> Fri, Friday

3. %%y, %%Y ==> 08, 2008

4. %%d, %%m ==> 05, 12

5. %%H:%%M:%%S ==> 18:25:20

6. %%I:%%M:%%S %%p ==> 06:25:20 PM

7. %%j ==> 340

8. %%S ==> 20

9. %%w ==> 5 ( Friday is the 6th day)