Could you add to the Knowledge Base below and add an example for blacking out specific date(s). http://formidablepro.com/knowledgebase/frm_date_field_js/#kb-add-blackout-dates
Default Date validation

I having problem with the default validation. It renders my date as invalid submission. I have disabled all my plugins. I am using Formidable Pro Version 1.06.08 and when i look at the embedded javascript It shows $.datepicker.setDefaults($.datepicker.regional['']); $(“#field_xnawl1″).datepicker($.extend($.datepicker.regional['en-GB'], {dateFormat:‘d/mm/y’,changeMonth:true,changeYear:true,yearRange:’1930:2020′})); }); var frmJsHost=((“https:”==document.location.protocol)?”https://”:”http://”); document.write(unescape(“%3Cscript src=’”+frmJsHost+”ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/i18n/jquery.ui.datepicker-en-GB.js’ type=’text/javascript’%3E%3C/script%3E”)); //]]> I think the error is caused by [...]
Turning the date into an editable string
Early Bird discount calculation?
Customise Calendar start dates
Customised search to include date
Calculate a date based on the system date and hour
The objective is to have a date field with the actual date altered to a couple of hours in the past, let’s say if I want to subtract 8 hours: Actual system date and hour: Dec-28-2012 at 14:00 hrs Result in the date field: Dec-28-2012 Actual system date and hour: Dec-28-2012 at 05:00 hrs Result [...]
Age limit as a condition
Hello, I’ve created a form for entry in a piano competition with several levels that so far is working fine. However, at the beginning of the form, I require that the user enter their birthdate, this way, the entrants that don’t meet the age qualification can be eliminated from choosing those levels that have age [...]
Date Widget – Event Date is Invalid error

Hi Stephanie, I’ve recently started getting errors that prevent my form from accepting dates for events. (See attached screenshot). Could a change in the WordPress date display format cause this effect? I also recently installed WATS, a ticket system, on the same Multi-site network, and noted this flakiness shortly after… Is it possible for plugins [...]
Date input field for birthday (manually + datepicker)
I’ve got a field in the form, that is collecting informations about user’s birthday. Now I’m pretty sure none of the current users would be born in future. Is there any way, how to check (ideally client-side), that the date inserted in the field is older than ‘today’. Also, how could I prevent date-picker from [...]
Conditional Calculation
Cannot update date-field
Hi, two problems with date-fields: 1. The field uses “German” in “Calendar Localization” but still the display is english (mm/dd/yyyy, I want: dd/mm/yyyy) 2. Whatever I enter into the field it sporadically gets some random date assigned. If I try to correct the entry through the backend it wont work either (the editor form sais [...]
Date field style clashes with theme
Hi there, I have been setting up my first form (really easy, thank you!) and have run into a problem. The date field is inserted with a very generic “date” CSS class. Formidable’s styling doesn’t seem to require it, but it’s causing the WordPress theme I’m using (Graphene) to display a calendar background image inside [...]



