How to perform lookup cache for both date and time of day?

[archanamalakala]

My service callout response for token success will look something like this.

{

token : "djjffedafdfrsfsffdsfffffffffffffffffasdaaaaaaa"

expirytime :" 202106:13T05:12:34:455"

}

My question is token expire on particular date and on particular time when i perform a cache lookup for token i have to check both date and time in combination.

1. How do i add cache in environment configuration?
2. How could i do this?

So far i have exacted expirytime variable in JS and assigned them as reference in expire time setting in cache policy.

Looking for some direction from experts @Anil Sagar @ Google @Dino-at-Google