Fall 2024
| Registration Opens | August 8, 2024 | Thursday |
| Early Bird Discount Ends | September 4, 2024 | Wednesday |
| Fall Term Begins | September 14, 2024 | Saturday |
| Alumni Project Workshop Registration Deadline/Certificate Application Deadline | September 21, 2024 | Saturday |
| Election Day | November 5, 2024 | Tuesday |
| Thanksgiving Break | November 27–December 1, 2024 | Wednesday–Sunday |
| Fall Term Ends | December 8, 2024 | Sunday |
Spring 2025
| Registration Opens | December 12, 2024 | Thursday |
| Early Bird Discount Ends |
January 22, 2025 | Wednesday |
| Spring Term Begins | February 1, 2025 | Saturday |
| Alumni Project Workshop Registration Deadline/Certificate Application Deadline |
February 8, 2025 | Saturday |
| Presidents' Day Holiday | February 17, 2025 | Monday |
| Spring Break | March 17–March 23, 2025 | Monday–Sunday |
| Spring Term Ends | April 27, 2025 | Sunday |
Summer 2025
| Registration Opens | April 17, 2025 | Thursday |
| Early Bird Discount Ends |
May 21, 2025 | Wednesday |
| Summer Term Begins | May 31, 2025 | Tuesday |
| Alumni Project Workshop Registration Deadline/Certificate Application Deadline |
June 7, 2025 | Saturday |
| Juneteenth Holiday | June 19, 2025 | Thursday |
| July 4th Break | July 4–July 6, 2025 | Friday–Sunday, 2025 |
| Summer Term Ends | August 23, 2025 | Sunday |
Fall 2025
| Registration Opens | August 7, 2025 | Thursday |
| Early Bird Discount Ends |
September 10, 2025 | Wednesday |
| Fall Term ;Begins | September 20, 2025 | Saturday |
| Alumni Project Workshop Registration Deadline/Certificate Application Deadline |
September 27, 2025 | Saturday |
| Election Day | November 4, 2025 | Tuesday |
| Thanksgiving Break | November 26–November 30, 2025 | Wednesday–Sunday |
| Fall Term Ends | December 13, 2025 | Sunday |
Note: Holidays included on this calendar are dates that are no meeting dates for Otis College Extension.