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PTTL

Syntax​

PTTL key

Time complexity: O(1)

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.

Return​

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.

Examples​

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