User wants to display the time when the transaction form is opened or created.
To create a custom field that shows the time when the transaction form is opened:
1. Navigate to Customization > Lists, Records, & Fields > Transaction Body Fields > New.
2. Set the Type to Time of Day.
3. Unmark the Store Value checkbox.
4. In the Validation & Defaulting tab, select Current Date/Time in the Dynamic Default.
5. In the Applies To tab > mark the record(s) where the field will be displayed.
6. Click on Save.