Application attribute: default_date_format

default_date_format that will allow you to put a default global in. If not populated it chooses dd/mm/yy - other options below

d - day of month (no leading zero)
dd - day of month (two digit)
o - day of the year (no leading zeros)
oo - day of the year (three digit)
D - day name short
DD - day name long
m - month of year (no leading zero)
mm - month of year (two digit)
M - month name short
MM - month name long
yy - year (two digit)
yyyy - year (four digit)
@ - Unix timestamp (ms since 01/01/1970)
! - Windows ticks (100ns since 01/01/0001)
'...' - literal text
'' - single quote