Gravity Forms. Disable weekends - Allow time selection based on day.

date.js

//Note that this does NOT validate server side.
jQuery(document).ready(function($) 
{
  //#input_[form_id]_[field_id]
  //Get Date Field
  var $dateField = $( "#input_16_6" );
  var date = new Date($dateField.val());
  
  //Get Weekday Time Dropdowns
  var $mondayTimes = $( "#input_16_7" );
  var $tuesdayTimes = $( "#input_16_8" );
  var $wednesdayTimes = $( "#input_16_9" );
  var $thursdayTimes = $( "#input_16_10" );
  var $fridayTimes = $( "#input_16_11" );
  
  //Store in array
  var weekdayTimes = ['sunday',$mondayTimes,$tuesdayTimes,$wednesdayTimes,$thursdayTimes,$fridayTimes,'saturday'];
  
  //Disable Weekends on date
  $dateField
    .datepicker({ gotoCurrent: true, prevText: '<', nextText: '>', showOn: 'both', beforeShowDay: jQuery.datepicker.noWeekends });
  
  //Hide all dropdowns other than one specified
  function showDropdowns(index)
  {
     for(var x = 1; x < weekdayTimes.length - 1; x++)
    {
      weekdayTimes[x].hide();
    } 
    if(index && index !== 6)
      weekdayTimes[index].show();
  }
  
  //Hide all dropdowns by default
  showDropdowns(date);
  
  //"Fake" Conditional Logic
  $dateField.on('change', function()
  {
    //Update our date
    date = new Date($(this).val());
     showDropdowns(date); 
  });
  
});