12.4, 12.5 Back to Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar When: September 12, 2017 @ 1:30 pm – September 12, 2017 @ 2:30 pm 2017-09-12T13:30:00-10:00 2017-09-12T14:30:00-10:00 Calculus