No. You can see a typical Introduction to Buddhism course schedule here. At the bottom of this page, you will see that we have written:

Please Note: This schedule highlights different elements of the course structure, but be aware that the course is a cohesive package running from 1pm on Check-In Day to 1pm on Check-Out Day. Late Arrival or Early Departure is not permitted. Please make your travel arrangements accordingly. Thank you!

During our 40 years of experience, we have found that our 10-day "Introduction to Buddhism" program is the most comprehensive and concise structure in which to teach the basic principles of Buddhism and to miss parts of this course would be to undermine what can be absorbed from the course in its entirety. 

In addition, it can also be very distracting or distressing for the other students when someone leaves early, being that everyone is required to keep silence and they may not understand why someone has gone.

And on top of all these factors, we have large courses, with many students. Tushita is run by a very small group of extremely busy and hard-working volunteers, and arrival or departure outside our efficient and carefully planned group check-in and check-out sessions is an enormous burden to the staff. Please consider timely arrival and departure the first step on abiding by the course discipline.