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EXPIRETIME

Syntax

EXPIRETIME key

Time complexity: O(1)

ACL categories: @keyspace, @write, @fast

Returns the absolute Unix timestamp (since January 1, 1970) in seconds at which the given key will expire.

See also the PEXPIRETIME command which returns the same information with milliseconds resolution.

Return

Integer reply, specifically:

  • The expiration Unix timestamp, in seconds.
  • -1 if the key exists but has no expiration time.
  • -2 if the key does not exist.

Examples

dragonfly> SET mykey "Hello"
OK
dragonfly> EXPIRETIME mykey
(integer) -1
dragonfly> EXPIRETIME missing
(integer) -2
dragonfly> EXPIRE mykey 100
(integer) 1
dragonfly> EXPIRETIME mykey
(integer) 1755753267