1. Timezone : America/Newyork
2. Dump the sql by command : mysqldump --routines -u root -pmysql helpdezk14 > helpdezk.sql
3. Vendor has asked to keep min requirement PHP 7.0 and MYSQL version 5.6. Check here
https://github.com/albandes/helpdezk/issues/62#issuecomment-577118916
4. Remove DEFINER=`root`@`localhost` from sql. It is added post installation