Skip to main content



PTTL key

Time complexity: O(1)

ACL categories: @keyspace, @read, @fast

Like TTL this command returns the remaining time to live of a key that has an expire set, with the sole difference that TTL returns the amount of remaining time in seconds while PTTL returns it in milliseconds.


Integer reply: TTL in milliseconds, or a negative value in order to signal an error.

  • The command returns -2 if the key does not exist.
  • The command returns -1 if the key exists but has no associated expire.


dragonfly> SET mykey "Hello"
dragonfly> EXPIRE mykey 1
(integer) 1
dragonfly> PTTL mykey
(integer) 1000