Steps to reproduce

1. Create a test with all required setup 
2. Start the test with schedule time
3. Try to set the time in CET time (or whatever timezone of current login user) or even your local time

Expected results

• The test should be start at the schedule time with the timezone of current logon user (superuser or eric)

Actual results

• The test won't start at the scheduled time

Development notes

• Should create a new field "scheduledStartDate" to separate with the existing one "startDate"
• Investigate the function StartTestAction#convertToCalendar to convert the input date with the configured timezone of the user

Linking this one with another ticket for UI bug