Hi Jean,
Thank you for contacting Syncfusion support.
Regarding Query: Is it possible to hide the hours?
Yes, it is possible to hide the hours of the timeslots. By setting the timeRulerSize value as 0 you can hide the hours in the timeslots. We have a UG documentation for the same. Please find the UG from the following link.
UG link:
Screenshot:
We hope that this helps you. Please let us know if you need further assistance.
Regards,
Indumathi R