Validation on Date/Time field for user profile timezone On submission

[Mohankumari]

Hi all,

I have added date/time field in one of my form in service portal.I want to validate on submission of request.( Due to some restrictions I cant use script include and business rule)

I have set my user profile timezone to NYT. 

When I add value in date/time field (2026-03-20 10:15:00)  and when I click on submit button on service portal at (2026-03-20 10:17:00). It should validate the date/time with current user profile timezone, if it's expired or past date/time.It should block the submission.

I tried g_user_date_time_format but it is comparing the value in date/time field with the local time(PC time). 

How to troubleshoot this scenario.

Thanks in Advance!

Mohankumari 

[Tanushree Maiti]

Hi @Mohankumari 

Check this KB :https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0812495

Here you have to use onSubmit() Catalog Client script.

Resolution

To ensure that the date entered in a form is valid upon submission, utilize the onSubmit client script and include a script similar to the following.

Using g_user_date_time_format

function onSubmit() {
var now = new Date();
var dt1 = getDateFromFormat(g_form.getValue("start_date_time"), g_user_date_time_format);
if (dt1 > now) {
g_form.addErrorMessage("Start Date must be before current time.");
return false;
}
}

Using g_user_date_format

function onSubmit() {
var currentDateObj = new Date();
var currentDateStr = formatDate(currentDateObj, g_user_date_format);
var currentDateNum = getDateFromFormat(currentDateStr, g_user_date_format);
var startDateNum = getDateFromFormat(newValue, g_user_date_format);
if (startDateNum > currentDateNum) {
g_form.showFieldMsg('Start Date must be before current time.', 'error');
return false;
}
}

 .

[Ankur Bawiskar]

@Mohankumari 

simply use UI policy and no scripting required

the condition in UI policy will take care of the date format and the timezone as well

check this

No Code date validations through (Catalog) UI Policies 

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏

[Mohankumari]

Hey Ankur, 

Yes, UI policy reduce lots of effort on validation. I have applied this approach , but this approach will on onchange. if I enter past date/time , it would validate and show error message.

but if I enter future time , it would accept , but I want to do same kinda validation on OnSubmit.

if the current time is greater than date/time field it will not pass validation here on submit

[Ankur Bawiskar]

@Mohankumari 

why you want onSubmit when it can be done with simple UI policy which runs when field changes