How to validate end time should be greater than start time in hh:mm? client script for this

[Chaitra k1]

If the user chooses start time which is greater than the chosen end time then , message has to dispaly saying end time should be greater than start time in the client script

time is given in drop down as hh:mm for both start and end time

[Shakeel Shaik]

Hi @Chaitra k 

 Once check this below link for reference

A Date field Should not allow Past Dates using Client Script in ServiceNow

If my response is helpful, then Please mark as Correct Answer/Helpful.

Please check and let us know.

Thanks 🙂

Shakeel Shaik.

[Community Alums]

Hi @Chaitra K ,

You can use this onChange script on the start date:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
	
	if (isLoading || newValue == '') {
		
		return;
	}
	
	var end = g_form.getValue('due_date');
	var start = g_form.getValue('u_planned_start_date');
	var format =  g_user_date_time_format;
	var isEndBeforeStart = compareDates(start, format, end, format);
	
	
	// skip if start and end is blank
	
	if (start == "" && end == "") {
		
		return;
	}
	
	// skip if start is not blank and end is blank
	
	if (start != "" && end == ""){
		
		return;
	}
	
	if (isEndBeforeStart) {
		g_form.setValue('u_planned_start_date', '');
		
		alert("Planned start date must be before Planned end date.");
		
		
	}
}

Mark my answer correct & Helpful, if Applicable.

Thanks,

Sandeep