The --since-time fix in 3.2 is not able to be backported to 3.1

--since allows specifying relative time (for example, '--since=60s' shows the last 60 seconds of logs) and works in 3.1

Given the major refactoring in this area between 3.2 and 3.1 the 3.2 fix can not be backported. Thus any fix in 3.1 would be wholly untested as it would be a completely new fix. In 3.1 the code that processes --since-time also processes a lot of other time fields in the API and thus any changes could have great risk across the system.

In 3.1 the --since flag works and a simple script can translate times which would have been passed to --since-time to --since:

$ THEN=$(date --date='2017-06-20 13:24:00' +%s)
$ NOW=$(date +%s)
$ SINCE=$(( ${NOW} - ${THEN} ))
$ oc logs --since="${SINCE}s"

Since fixing this introduces a risk of major regression and there is a small usable workaround engineering does not plan to address this BZ in 3.1.