How can convert log file time in this format "23-May-17 12:05:37" in log4js package using node js

I am trying to change log time this date time format [2017-05-23 12:05:37.327] into this 23-May-17 12:05:37. I am using this package: https://www.npmjs.com/package/log4js

Here is file configuration of node4js.

     {
       "appenders": [
      {

        "type": "file",
       "filename": "logs/v_1_0_9.log",
       "maxLogSize":1073741824,
       "backups": 10,
       "pattern": "%d{dd/MM hh:mm} %-5p %m"

        "category": "logger"
        }
      ],
            "replaceConsole": true
      }

Output of my code

[2017-05-24 15:57:00.924] [INFO] logger - tetsting

but above output is not my expected.

Expected output here:

[23-May-17 12:05:37] [INFO] logger - tetsting

Please help Thanks in Advance.

via Raheel Aslam