How to set delay in website access

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WebConfig

timer

Hello Everyone and thank you in advance for looking at my question.

I'd like to know how to put a delay onto a website where it would only be accessible at certain times by what your computer time is. Meaning I'd like for a webpage to be seen at 12:15-12:20am your computer time (not reliant on real time). Reason is for a digital literature class project. I'm trying to create an interactive, mostly through HTML, webpage project but the largest factor that I can't seem to figure out is how to incorporate a time sensitive delay in navigation.

Such as something like this

You find a note that says to meet at X at 3am Febuary 10th, you click the hyper link to take you there but it pops up a 404 link not found or error message. You change your computer time to this date and time and re click the link and it pops up the next page. There is no expiration on the page as long as your viewing the content of the page. I've seen this done years back on a project and found it interesting.

I'm not a programmer, nor do I have much in the way of ability in coding. Is this possible and how would I incorporate it into a webpage.