question Re: Allow past date in date/time field in Developer forum

Allow past date in date/time field

Martines — Thu, 12 Feb 2026 12:20:33 GMT

Hi community,

I'm struggling with creating the date/time field where only the past dates are allowed. I found this code.

But it doesn't work. The accepted behavior is that user is not able to choose from the date/time component the future dates. (This would be happy case) Or at least when user choose date in future he will get the message that future dates are not allowed.

Do you have any suggestions? Thank you in advance.

Re: Allow past date in date/time field

Mark Manders — Thu, 12 Feb 2026 12:29:44 GMT

Same ui policy, but update the text in the script. The condition should be 'start date relative after 1 minute ago' or something similar.

Re: Allow past date in date/time field

yashkamde — Thu, 12 Feb 2026 12:34:10 GMT

Hello @Martines ,

You can use the onChange client script for that :

Script :

If my response helped mark as helpful and accept the solution.

Re: Allow past date in date/time field

Ankur Bawiskar — Thu, 12 Feb 2026 12:36:49 GMT

@Martines

this should work fine

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

Re: Allow past date in date/time field

Martines — Thu, 12 Feb 2026 12:41:53 GMT

thank you for your answer. And if I have more fields where I need to apply this? I don't want to create like 6 ciient scripts for each field I would like to have like on function for that.

Re: Allow past date in date/time field

Hemanth EK — Thu, 12 Feb 2026 12:47:53 GMT

Create a Client Script:

Type is Onchange and field is start_date_time

How It works

Gets selected date
Compares with current date/time

Re: Allow past date in date/time field

Mark Manders — Thu, 12 Feb 2026 13:42:50 GMT

Client scripts work on the fields themselves, so you will need one for every field. But it makes no sense. You can do this with ui policies.

Re: Allow past date in date/time field

Martines — Thu, 12 Feb 2026 13:43:03 GMT

I did it this way:

Created UI policy:

Where I include every field that needs to be checked.

Than in script I made the if statements:

I know that it can be simplified with for loop 😄

Re: Allow past date in date/time field

Ankur Bawiskar — Thu, 12 Feb 2026 13:55:35 GMT

@Martines

Your script won't help user to know which field actually was having invalid value.

If Start date is invalid then it will show error message besides all fields.

You will require separate UI policies for each field

Logic I already shared

Re: Allow past date in date/time field

Ankur Bawiskar — Thu, 12 Feb 2026 15:35:14 GMT

@Martines

Did my approach work for you?

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

Re: Allow past date in date/time field

Ankur Bawiskar — Fri, 13 Feb 2026 03:24:57 GMT

@Martines

create those many individual UI policies on each field

create 1 onSubmit and validate all the fields and whichever fields are invalid show field message error near that

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