1<!-- First time contributors: Take a moment to review CONTRIBUTING.md! --> 2<!-- Remove sections if not applicable --> 3## Summary of changes 4 5<!-- Summary goes here --> 6 7Closes <!-- issue number here --> 8 9### Pull Request Checklist 10- [ ] Changes have tests 11- [ ] Authors have been added to [AUTHORS.md](https://github.com/dateutil/dateutil/blob/master/AUTHORS.md) 12- [ ] News fragment added in changelog.d. See [CONTRIBUTING.md](https://github.com/dateutil/dateutil/blob/master/CONTRIBUTING.md#changelog) for details 13