Specialization Deadline – JHU Data Science

How can I tell when my specialization deadline is?  I’m done with the first two classes of the data science specialization, and I’d like to do one class at a time, with 1 or 2 breaks, but I don’t know how that timing will work out.   If I don’t finish the specialization in time, what will happen to my completed classes?  Can I re-purchase the not-yet-completed classes individually and finish the specialization or do I need to start again from scratch?  Thanks, Jon


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