danicasati on "[Plugin: Contact Form 7] Change date format when sending"

Hi.
I'm using CONTACT FORM 7 with CONTACT FORM DB.

When I send a form, I need to change date format for one field, so I need to save to database a date with this format: YYYYMMDD.

I've tried many ways, but the date is always saving with DD/MM/YYYY format.
How can I change this?

http://wordpress.org/plugins/contact-form-7/