In JIRA and also in Greenhopper I am from time to time facing the a proprietary date-format with values like
-1334129321733 and so on
This happens in:
- JIRA for the field jira.updated.date within XML-Workflow exports
- Greenhopper for fields sprint.start.date and sprint.end.date
Question: How do I convert this into human readable time-formats? Any known algorithms? Neither Google, nor any other question/answer here could help me out so far.