Send mail depending the date

[alrodgir]

Hi,
I'm trying to send a mail depending the date (after a date I send a mail, before send another one).
I'm using the {date:Y/d/m} static form variable. Using conditional in the auto-response processor like this
if [name_Var] 'is bigger than' 2017/01/08 --> Use the processor and send mail.
Where [name_var] is a custom var {date:Y/d/m} static.
But it doesn't work.
What I'm doing wrong???
:'(