The following date/time field variables are used:
d  | 
08/17/2000  | 
D  | 
Thursday, August 17, 2000  | 
f  | 
Thursday, August 17, 2000 16:32  | 
F  | 
Thursday, August 17, 2000 16:32:32  | 
g  | 
08/17/2000 16:32  | 
G  | 
08/17/2000 16:32:32  | 
m  | 
August 17  | 
r  | 
Thu, 17 Aug 2000 23:32:32 GMT  | 
s  | 
2000-08-17T16:32:32  | 
  | 
  | 
t  | 
16:32  | 
T  | 
16:32:32  | 
u  | 
2000-08-17 23:32:32Z  | 
U  | 
Thursday, August 17, 2000 23:32:32  | 
y  | 
August, 2000  | 
  | 
  | 
d, dd, ddd, dddd  | 
Current day of the month d, dd=numeric, ddd=abbreviation (ie, "Wed"), dddd=spelled out.  | 
f, ff, fff, ffff, fffff  | 
Fractions of a second, varying numbers of digits  | 
h, hh Hours  | 
12 hour format  | 
H, HH Hours  | 
24 hour format  | 
m, mm:  | 
Minutes  | 
M, MM, MMM, MMMM  | 
Month. MM = 2 digit, MMM = abbreviation (ie, "Jan"), MMMM=spelled out  | 
s, ss  | 
Seconds  | 
t, tt  | 
AM/PM indicator  | 
y, yy, yyyy  | 
Year  | 
z, zz, zzz  | 
Time zone offset from GMT. Time separator  | 
/  | 
Date separator  | 
Any other character  | 
Other characters  | 
  | 
  | 
Examples:  | 
  | 
dddd, MMMM dd yyyy  | 
Thursday, August 17 2000  | 
ddd, MMM d "'"yy  | 
Thu, Aug 17 '00  | 
dddd, MMMM dd  | 
Thursday, August 17  | 
M/yy  | 
8/00  | 
dd-MM-yy  | 
17-08-00  | 
Other time span options:
totalmilliseconds
totalseconds
totalminutes
totalhours
totaldays
To get single date parts you can use percentage sign first:
{DATEFORMAT(%M)}
{DATEFORMAT(%d)}
More information:
If you have a problem with Variables displaying other format than system it might be because you need to check the following below:
