DoctorWhen is a CiviCRM extension aimed at correcting problems in date/time/timestamp fields.
In the past few years, no serious issues have been reported. The extension is considered safe to run, but please take the necessary precautions:
- Read the problem description.
- Before executing in production, review the list of open issues.
- Before executing in production, execute on a staging system with representative data. Inspect the results for correctness.
- Before executing in production, make an up-to-date backup of your MySQL data.
- Report back if you run into any failures.
- After confirming all changes have been completed successfully, uninstall this extension.