PSETEX
Syntax
PSETEX key milliseconds value
Time complexity: O(1)
PSETEX
works exactly like SETEX
with the sole difference that the expire time is specified in milliseconds instead of seconds.
Examples
dragonfly> PSETEX mykey 1000 "Hello"
"OK"
dragonfly> PTTL mykey
(integer) 1000
dragonfly> GET mykey
"Hello"