Hiding non-working time in MS Project

I don't know if this is the right way to do it, but it certainly worked for setting up non/working times, given that the MS help was absolutely useless. However I'm not too sure how you would go about having one person work on a different calendar.

1. Go to the Project tab in the ribbon.
2. Click the Change Working Time button in the Properties group.
3. Click Create New Calendar
4. Make a copy of "24 Hours"
5. Add an exception (table at bottom)
6. Call it anything and click Details
7. Choose Working times and specify the required working times
8. Recurrence to Daily
9. Set the start and end dates well outside project scope
10. Click Project Information in the Project tab of the ribbon
11. Change the Calendar to your new calendar

In addition to the standard calendar, there is also a resource calendar that can take precedence over the project calendar.

1. Go to the Resource Sheet view.
2. Double-click on a resource.
3. Click "change working time."
4. Click on the Work Weeks tab.
5. Click the Details... button
6. Ensure both Friday and Saturday are highlighted under "Select Days."
7. Tick the "set days to nonworking time" radio button.
8. Click Okay until the dialog box is closed.
9. Verify your changes in the Resource Usage view. You should see that days that are non-working are blue-gray and have no hours scheduled in them.

One caveat: scheduled hours with actuals recorded against them probably will not move.

Hope that helps!