python-dateutil will be updated to version 2.x and there may be changes that affect this package. If python-pandas will work with the newer python-dateutil, you can safely close this bug. If python-pandas really does require python-dateutil 1.5, please use Requires: python-dateutil15 for Fedora versions of the package until it can be updated.
Should not be a problem: ci/requirements-2.7.txt specifies dateutil=2.1. Also https://github.com/pydata/pandas/issues/1851.
Apparently this does not work after all: https://github.com/pydata/pandas/pull/9123.
dateutil is now build with the timezone patch, so the fix from 9123 is not currently needed. If it is merged, the patch will not be necessary anymore.