[TASK] Change date format to fit TYPO3 guidelines and improve eventdates which...

[TASK] Change date format to fit TYPO3 guidelines and improve eventdates which have the startDate and endDate set to the same day, different.
5 jobs for 546-only-display-the-day-once-for-one-day-events in 3 minutes and 16 seconds (queued for 4 seconds)