How to retrieve the remaining time in keys expiry in milliseconds in Redis? What is PTTL Command in Reids?

PTTL is a Redis command that returns the remaining time to live of a key in milliseconds. The PTTL command is similar to the TTL command, but returns the time-to-live of the key in milliseconds instead of seconds.

The syntax of the PTTL command is as follows:


PTTL key

where key is the name of the key for which to retrieve the remaining time-to-live.

For example, to get the remaining time to live of the key mykey in milliseconds, you can run the following command:


PTTL mykey

This command returns the remaining time-to-live of the key mykey in milliseconds. If the key does not exist or has no associated expiration time, the PTTL command returns -1.

Note that the PTTL command is available since Redis version 2.6.0, so make sure your Redis version supports it before using this command.

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