Comment 31 for bug 521569

This solution worked for me https://bugs.launchpad.net/ubuntu/+source/gwibber/+bug/533017/comments/25
I set the locale to en_US.utf8 and then started the gwibber-service and things were working perfectly.
My locale earlier was en_IN and at that time gwibber was failing at the following line:
m["time"] = util.parsetime(data["created_at"])