Format MySQL number to datetime?


I have a MySQL database show uptime for devices. The uptime is how long the device has been up in seconds. I have a query showing all devices with uptime less than 86400 (24 hours) which I want to bring into a PHP page.

I want to format this uptime string number into a datetime that's human readable. Here is my query:

select hostname,type,uptime from devices where uptime < 86400 And here is sample output: hostname: serverA type: server uptime: 10329

How can I turn that 10329 into an actual time? I assume there is some sort of value that can pull the current time in seconds, minus that uptime value, and convert that into MM/DD/YYYY HH:MM:SS readable value?

Any help is great appreciated!

EDIT: Decided to use both answer below, but here is the query that fits my needs:

SELECT hostname AS Server,type AS Type,NOW() - INTERVAL uptime SECOND AS "Boot Time",last_polled AS "Last SNMP Poll" FROM devices WHERE uptime < 86400

Which returns:

Server: ServerA Type: server Boot Time: 2014-02-11 13:26:52 Last SNMP Poll: 2014-02-11 18:35:14




TIME_FORMAT(SEC_TO_TIME(uptime),'%Hh %im')

Google: <a href="https://stackoverflow.com/questions/8193868/convert-seconds-to-human-readable-time-duration" rel="nofollow">Convert seconds to human readable time duration</a>

select hostname,type,TIME_FORMAT(SEC_TO_TIME(uptime),'%Hh %im') from devices where uptime < 86400

This will give you Hours and minutes of uptime. You can add seconds in as well if you want by reading up on the TIME_FORMAT method. <a href="http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html#function_time-format" rel="nofollow">http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html#function_time-format</a>


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