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This command works exactly like `EXPIRE` but the time to live of the key is
specified in milliseconds instead of seconds.
## Options
The `PEXPIRE` command supports a set of options since Redis 7.0:
* `NX` -- Set expiry only when the key has no expiry
* `XX` -- Set expiry only when the key has an existing expiry
* `GT` -- Set expiry only when the new expiry is greater than current one
* `LT` -- Set expiry only when the new expiry is less than current one
A 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.
@return
@integer-reply, specifically:
* `1` if the timeout was set.
* `0` if the timeout was not set. e.g. key doesn't exist, or operation skipped due to the provided arguments.
@examples
```cli
SET mykey "Hello"
PEXPIRE mykey 1500
TTL mykey
PTTL mykey
PEXPIRE mykey 1000 XX
TTL mykey
PEXPIRE mykey 1000 NX
TTL mykey
```
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