ENH issue#11977 Added ValueError to Timestamp p…
closes #11977

pls don't keep opening and closing pull requests

simply push to the same one
 Question. How to I embed a graph in an issue?
 https://guides.github.com/features/mastering-markdown/ search for images.
 drag and drop
 ideally like some tests that `assert_raises_regex` about the error message (add in `tseries/test_timeseries`)
 @MattRijk can you update according to comments
 @MattRijk can you update
 pls reopen if you'd like to update
 @jreback. Sorry for not getting back to you. I worked on the update a couple of times for a while. I couldn't get the message to show correctly
