You can mark time attached to a bill as not included in that bill by going to the Bill Enquiry.
From the Accounts Desktop select the Control tab.
Select the Debt Control.
From the dropdown select Bill Enquiry.
Put in the bill number or other details you may have in the search and select Search.
Highlight the bill and select Edit.
Select the Time tab and then tick the time you no longer require.
Select Update.
Click to ok the message for the changes.
The time should be on the file unbilled ready to pick up again.
⚠️Important: The bill can only be edited if the year and period are still open.