`TGraph::GetHistogram()` was resetting the TimeDisplay attribute of axis. The problem was reported [here](https://sft.its.cern.ch/jira/browse/ROOT-7766).
`TGraph::GetHistogram()` was resetting the TimeDisplay attribute of axis.
The problem was reported [here](https://sft.its.cern.ch/jira/browse/ROOT-7766).

tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot