yy 12 {"Year in two digit form"}
yyyy 2012 {"Year in full"}
m 9 {"Month in numeric form"}
mm 09 {"Month in numeric form, zero-padded"}
mmm Sep {"Month name, abbreviated"}
mmmm September {"Month name"}
d 3 {"Date"}
dd 03 {"Date, zero-padded"}
ddd Mon {"Day of the week, abbreviated"}
dddd Monday {"Day of the week"}
o 1st {"Date in ordinal form"}
h 6 {"Hours in 12-hour time"}
hh 06 {"Hours in 12-hour time, zero-padded"}
H 18 {"Hours in 24-hour time"}
HH 06 {"Hours in 24-hour time, zero-padded"}
M 4 {"Minutes"}
MM 04 {"Minutes, zero-padded"}
s 7 {"Seconds"}
ss 07 {"Seconds, zero-padded"}
S 7.000 {"Seconds with milliseconds"}
SS 07.000 {"Seconds, zero-padded, with milliseconds"}
a AM {"Period"}
Z +02:00 {"Time zone offset"}