Use DateTime for Gravity Forms Salesforce Web-to-Lead Addon

gf-salesforce-web-to-lead-datetime.php

<?php

/**
 * 1. Tell the plugin to use DateTime instead of Date for the "MyPrefix__Date_and_Time__c" field
 * 
 * @param string $boolean Whether to use DateTime instead of Date (default: false)
 * @param string $key The Field Name (or API Name if a custom field) used in Salesforce
 * @param array $additional_info Associative array with form, entry, field, feed data
 */
 function modify_gf_salesforce_use_datetime( $boolean = false, $key = '', $additional_info = array() ) {
 	
 	// Use your own Field Name or API Name below instead of the "MyPrefix__Date_and_Time__c"
 	// If it matches, DateTime will be used
 	if( $key === 'MyPrefix__Date_and_Time__c') { 
 		return true;
 	}
 	
 	return $boolean; // Otherwise, Date will be used by default
 }
 
 add_filter('gf_salesforce_use_datetime', 'modify_gf_salesforce_use_datetime', 10, 3 );
 
 
 
/**
 * 2. Change the date format (optional)
 *
 * If the date format isn't working for DateTime, you can modify it here.
 * Use the format shown here for your country: 
 * @link https://help.salesforce.com/apex/HTViewHelpDoc?id=admin_supported_locales.htm
 */
 function modify_gf_salesforce_datetime_format( $format ='Y-m-d H:i:s' ) {
   /** 
    * Use a different format, using the Date Time Formats shown here:
    * @link http://codex.wordpress.org/Formatting_Date_and_Time
    */
   return 'c';
 }
 
 add_filter('gravityforms/salesforce/datetime_format', 'modify_gf_salesforce_datetime_format');