Comparing different time formats

I am trying to do a comparison of files based on their last modified date.

I am pulling the first file from a webapp folder using curl.

curl --silent -I http://localhost:8023/conf/log4j2.xml | grep Last
Last-Modified: Tue, 22 Mar 2016 22:02:18 GMT

The second file is on local disk.

stat /var/tmp/log4j2.xml  | grep Modify | awk '{print $2" "$3}' | cut -d'.' -f1
2016-03-24 13:56:51

Is there a mechanism to convert the times ? So that I can then compare the two times and take an action accordingly.

Hi.

To what granularity? Same year? Same month? Day? Hour?, etc.

Best wishes ... cheers, drl

Day Month Hour Minute

I found something like this which gives me the same format. Thats what I needed.

    OLD=`date --date="$OLD_TIME"`
    NEW=`date --date="$NEW_TIME"`