Date fields in Change Model Task Plan doesn't show date picker.
This causes inconsistent data and user confusion as they don't know which format to write a date in.
Service Manager 9.63 and later
Create Change Model
Edit Task Information
Create a new task on the model.
Press Additional Properties
Press Add Additional Properties.
Give it an Id, Display Label and select Type Date/Time
Create a change with the change model and be sure that the task is created and active
Go to Additional Properties on the change task.
The date field you created has no date picker.
This worked in earlier versions of Service Manager, but we are not quite sure of which version it stopped work in.