Error 'Unknown or incorrect time zone: 'America/Denver'' on query. Default database: ''. Query: 'CREATE INDEX `my_index` ON `myDatabase`.`my_table` (column1, column2) COMMENT '' ALGORITHM DEFAULT LOCK DEFAULT'
For whatever reason this MySQL server didn't have the time zone information. You can add the time zone information like this:
mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root -p mysql
Here is a reference to this on stack exchange:
https://dba.stackexchange.com/questions/120945/how-do-i-resolve-this-error-error-1298-hy000-unknown-or-incorrect-time-zone