Fall Labs - do these if you are enrolled in the Astronomy Course during the Fall Semester
Fall Observing Lab 1 - do this lab during September or early October
Fall Observing Lab 2 - do this lab during October or early November
Fall Observing Lab 3 - for this one, you have to wait until mid-December or later, and you might have to go outside a little later than usual - maybe 11:30 or midnight. I totally understand if it is too cold, snowy, and late to actually do this one outside. You can do this one entirely on Stellarium.
Spring Labs - do these if you are enrolled in the Astronomy Course during the Spring Semester
Spring Observing Lab 1 - do this lab during mid-February or early March
Spring Observing Lab 2 - do this lab during mid-March or early April
Spring Observing Lab 3 - do this lab during mid-April or early May