sharepoint datetimecontrol validation using JQuery

This post helps us on below mentioned validations.

1. Required validation.
2. Selected date time cannot be less than current date

//To get the selected date time control value

var selectedDateTimeVal = $('input[id*="dtcDateTimeCtrl"]').val();

//Required validation

if (selectedDateTimeVal == '') {
  
alert("Date Time control field value is required");

}

else
{
 var date = new Array();

 var currDate = new Date();

 // Input date format : mm/dd/yyyy

 date = selectedDateTimeVal.split('/');

 var year = date[2];

 var month = date[1];

 var date = date[0];

 var selectedDate = month + "/" + date + "/" + year;

 var tarDate = new Date(selectedDate);

 var timeDiff = tarDate.getTime() - currDate.getTime();

 var diffDays = Math.ceil(timeDiff / (1000 * 3600 * 24));

 if (parseInt(diffDays) < 0) {

  alert("Selected datetime value cannot be less than current date");

  }
}