time_bounds for start is a negative number

**Erik Kluzek < erik > - 2016-09-20 15:07:14 -0600**
**Bugzilla Id:** [2352](http://bugz.cgd.ucar.edu/show_bug.cgi?id=2352)
**Bugzilla CC:** mickelso, rfisher, sacks,

Based on Sheri Mickelson time_bounds on the clm history files is a negative number. She'd like this to be zero. I haven't looked into this at all at this point, just repeating what she told me.