Can We create a Gantt Chart with Hours as Unit of Measure on the X-axis (Values Axis)?

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I have made a custom object as Appointment (Child of Incident object).

The Incident is assigned to the Servicing head who in turn assigns the appointment to one of his Service Engineers.

This assignment is a manual process in which the servicing head needs to check the availability (for that day) of his service engineers.

I have created a Gantt chart where I am able to show the availability of his Service Engineers.

But the issue is that the value axis shows only the day. It doesnt show the break up in an hourly manner.

Can we change the value axis Unit of measure as hours rather than a day?