HR Absences with OTL Integration - How to disable time field

On SSHR or Absence detail form, how can we disable time entry field section? we just want to enter Date/Hours no time. Date and hours needed when we enter PTO hours and we want to see just date and hours on Timecard? We are trying to integrate SSHR absences with OTL.  We charge time daily and we need to enter these absences daily instead of date range?  I appreciate your help on this issue you have experience with.

Thanks,

Irfan