PEXPIRETIME
Syntax
        PEXPIRETIME key
- Available since:
 - 7.0.0
 - Time complexity:
 - O(1)
 - ACL categories:
 - 
              
                
@keyspace,@read,@fast, 
PEXPIRETIME has the same semantic as EXPIRETIME, but returns the absolute Unix expiration timestamp in milliseconds instead of seconds.
Examples
RESP2/RESP3 Reply
One of the following:
- Integer reply: Expiration Unix timestamp in milliseconds.
 - Integer reply: 
-1if the key exists but has no associated expiration time. - Integer reply: 
-2if the key does not exist.