Once you finished booking a GoSAMEDAY job, you realised that you have booked it into a wrong cut-off time. It is still OK to change as long as the job have not been assigned to a Runner. Here is how: 

1. Click on "Jobs" -> "List" from the left nav
2. Find the job that you would like to modify
3. Click on the eye icon on the right hand side to view details of the job
4. Click on "Change time" button

You can change the time and pay the difference on the next screen