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When I run the ps -ef command I receive something like this:

root     26728 26725 99 Sep25 ?        1184018564-02:43:14 java -jar /root/TaskManager.jar

I need to understand why the time is shown like this "1184018564-02:43:14"

Thanks

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up vote 6 down vote accepted

man ps says

  cputime    TIME     cumulative CPU time, "[dd-]hh:mm:ss" format. (alias time).

So your Java process has been running for 1184018564 CPU days (about 3,243,886 CPU years), OR ... something bad has happened.

It is Ubuntu bug #859311 associated with long-running multi-threaded processes.

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The UNIX time format is internally represented as a numeric value indicating the number of seconds since 1/1/1970.

https://en.wikipedia.org/wiki/POSIX_time

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