Sets the expiration time of a key to a Unix timestamp.
EXPIREAT
key unix-time-seconds [NX
| XX
| GT
| LT
]
EXPIREAT
has the same effect and semantic as EXPIRE
, but instead of specifying the number of seconds representing the TTL (time to live), it takes an absolute Unix timestamp (seconds since January 1, 1970). A timestamp in the past will delete the key immediately.
Please for the specific semantics of the command refer to the documentation of EXPIRE
.
EXPIREAT
was introduced in order to convert relative timeouts to absolute timeouts for the AOF persistence mode. Of course, it can be used directly to specify that a given key should expire at a given time in the future.
The EXPIREAT
command supports a set of options:
NX
– Set expiry only when the key has no expiryXX
– Set expiry only when the key has an existing expiryGT
– Set expiry only when the new expiry is greater than current oneLT
– Set expiry only when the new expiry is less than current oneA non-volatile key is treated as an infinite TTL for the purpose of GT
and LT
. The GT
, LT
and NX
options are mutually exclusive.
One of the following:
Integer reply: 0
if the timeout was not set; for example, the key doesn’t exist, or the operation was skipped because of the provided arguments.
Integer reply: 1
if the timeout was set.
O(1)
@fast @keyspace @write
127.0.0.1:6379> SET mykey "Hello"
OK
127.0.0.1:6379> EXISTS mykey
(integer) 1
127.0.0.1:6379> EXPIREAT mykey 1293840000
(integer) 1
127.0.0.1:6379> EXISTS mykey
(integer) 0
NX
, XX
, GT
and LT
.COPY, DEL, DUMP, EXISTS, EXPIRE, EXPIRETIME, KEYS, MIGRATE, MOVE, OBJECT, OBJECT ENCODING, OBJECT FREQ, OBJECT HELP, OBJECT IDLETIME, OBJECT REFCOUNT, PERSIST, PEXPIRE, PEXPIREAT, PEXPIRETIME, PTTL, RANDOMKEY, RENAME, RENAMENX, RESTORE, SCAN, SORT, SORT_RO, TOUCH, TTL, TYPE, UNLINK, WAIT, WAITAOF.