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Unfortunately, it is not possible to set an expiration option as you're describing, at least there is not a setting that will allow you to do that, you can only limit the form to an specific date or certain amount of submissions, here is a guide with more info about this: How-to-limit-submissions-in-a-form
I would suggest you to apply this workaround to achieve what you want, first add a time field to your form and set the time to the current one:
Then you can handle this with conditions and show a message if the time is not the one you want, hide the fields in the form, the condition should be like this one:
Here is a guide that will provide you with more info about how to set conditions based on another fields input: How-to-Show-or-Hide-Fields-Base-on-User-s-Answer
Please do let us know if you have questions, we will be glad to help.