Academic Calendar CIS 2023-24 Calendar First Day of School (Students) August 28, 2023 Last Day of School (Students) June 07, 2024 First Day of School (Teachers) August 21, 2023 Last Day of School (Teachers) June 14, 2024 End of 9 Weeks Reports Cards will go home five days after the end of the nine weeks October 26, 2023 January 12, 2024 March 14, 2024 June 7, 2024 Student Holidays,Annual Leave Days September 4, 2023 November 10, 2023 November 23-24 , 2023 December 19, 2023 thru January 1, 2024 January 15, 2024 April 01-05, 2024 May 27, 2024