With relation to this similar topic also (Date time picker has unfamiliar layout for most users), I think it would be beneficial to have a “simpler” time picker component available also, not just the analog dial approach as part of the standard component in Backendless.
You are using the MUI library, are you not? I seems that the v.6.12 version of that lib supports both 24h clocks, digital displays etc:
Maybe that will sort things out in all regards?