Note: The ability to edit time windows is available only in the Baseline of a workspace.
1. On the map view for your workspace, use the selection tools (Select Stops, Select by Attributes, or select in the stop list) to select one or more stops to edit time windows.
2. Click the
Edit time windows button 
on the stop list below the map.
3. On the Edit time window dialog that opens, enter the earliest and latest arrival times (based on a 24-hour clock) for the selected stop(s) and click Save. The time window information will be updated in the table for the selected stop(s). All copies of the stop will have the time window updated, even if not all of the instances of that stop are visible on the map.