SEL-Columbia/formhub — pull request #1296 by dpapathanasiou (2013-12-19 16:56:59+00:00)
Title: Obsoleted ParsedInstance.start/end_time attributes, since they no longer...

... perform a useful function given the implementation of instanceIDs, yet they were causing db sync problems (legacy xml data submissions affected by this bug -- https://github.com/SEL-Columbia/formhub/issues/1206 -- were raising timezone based ValueErrors during the sync process between mysql and mongodb).