Fall 2019
August
| Date | Day | Description |
| 25 | Sunday | First-Year Students Arrive |
| 27 | Tuesday | Upper-class Student Residences and Dining Halls Open* |
| 28 | Wednesday | Drop/Add Period Begins; Founders' Day Convocation |
| 29 | Thursday | First Day of Classes (Half-Day Schedule of Classes); S/U Grade Option Begins |
| 30 | Friday | Second Day of Classes (Tuesday Class Schedule) |
September
| Date | Day | Description |
| 9 | Monday | Full-Term and First-Half-of-Term Courses: End of Drop/Add Period |
| 20-22 | Friday-Sunday | Family Weekend |
| 25 | Wednesday | First-Half-of-Term Courses: Withdrawal Deadline (with grade of W) First-Half-of-Term Courses: S/U Grade Option Deadline |
October
| Date | Day | Description |
| 4-5 | Friday-Saturday | Homecoming |
| 12-15 | Saturday-Tuesday | Mid-Term Recess |
| 18 | Friday | First-Half-of-Term Courses End |
| 21 | Monday | Second-Half-of-Term Courses Begin |
| 25 | Friday | First-Half-of-Term Course Grades Due |
| 30 | Wednesday | Full-Term Courses: Withdrawal Deadline (with a grade of W) Full-Term Courses: S/U Grade Option Deadline Second-Half-of-Term Courses: Drop/Add Period Ends |
November
| Date | Day | Description |
| 8 | Friday | Deadline for Submission of Applications for Fall 2020 and Spring 2021 Colgate Study Groups |
| 11-15 | Monday-Friday | Course Registration for spring 2020 Term |
| 15 | Friday | Second-Half-of-Term Courses: Withdrawal Deadline (with grade of W) Second-Half-of-Term Courses: S/U Grade Option Deadline |
| 23-December 1 | Saturday-Sunday | Thanksgiving Recess |
December
| Date | Day | Description |
| 13 | Friday | Last Day of Classes |
| 14-15 | Saturday-Sunday | Review Period |
| 16-17 | Monday-Tuesday | Examination Period |
| 18 | Wednesday | Review Period |
| 19-20 | Thursday-Friday | Examination Period |
| 21 | Saturday | Student Residences and Dining Halls Close to All Students, 12:00 p.m. (noon) * |
| 30 | Monday | All Grades Due to Registrar's Office, 9:00 a.m. |
Spring 2020
January
| Date | Day | Description |
| 18 | Sat | Residence and Dining Halls Open * |
| 19 | Sun | Drop/Add Period Begins |
| 20 | Mon | First Day of Classes (Half-Day Schedule of Classes); S/U Grade Option Begins |
| 29 | Wed | Full-Term and First-Half-of-Term Courses: End of Drop/Add Period |
February
| Date | Day | Description |
| 5 | Wednesday | Deadline for Submission of Applications for Participation on an Approved Program for fall 2020 and/or spring 2021 (Off-Campus Study) |
| 14 | Friday | First-Half-of-Term Courses: Withdrawal Deadline(with Grade of W) First-Half-of-Term Courses: S/U Grade Option Deadline |
March
| Date | Day | Description |
| 6 | Friday | Deadline for Declaration of Major (Sophomore Class Only) |
| 6 | Friday | First-Half-of-Term Courses End |
| 9 | Monday | Second-Half-of-Term Courses Begin |
| 14-22 | Saturday-Sunday | Mid-Term Recess |
| 23 | Monday | First-Half-of-Term Course Grades Due |
April
| Date | Day | Description |
| 8 | Wednesday | Full-Term Courses: Withdrawal Deadline (with a grade of W) Full-Term Courses: S/U Grade Option Deadline Second-Half-of-Term Courses: Drop/add Period Ends |
| 13 | Monday | Second-Half-of-Term Courses: Withdrawal Deadline (with Grade of W) Second-Half-of-Term Courses: S/U Grade Option Deadline |
| 13-16 | Monday-Thursday | Course Registration for fall 2020 term [POSTPONED] |
| Date | Day | Description |
| 1 | Friday | Last Day of Classes |
| 2-3 | Saturday-Sunday | Review Period |
| 4-5 | Monday-Tuesday | Examination Period |
| 6 | Wednesday | Review Period |
| 7-8 | Thursday-Friday | Examination Period |
| 9 | Saturday | Dining Halls Closed; Residence Halls Close to All Students Except Seniors, 12:00 p.m. (noon) * |
| 11 | Monday | Senior Grades Due in Registrar's Office, 9:00 a.m. |
| 12-13 | Tuesday-Wednesday | Liberal Arts Core Curriculum Meeting-Faculty |
| 16 | Saturday | Baccalaureate |
| 17 | Sunday | Commencement |
| 17 | Sunday | Residence Halls Close to All Seniors and Guests, 8:00 p.m. * |
| 19 | Tuesday | All Other Grades Due to Registrar's Office, 9:00 a.m. |
| 28-31 | Thursday-Sunday | Reunion Weekend |
June
| Date | Day | Description |
| 1-3 | Monday-Wednesday | Course Registration for fall 2020 term |
*Except for students with prior approval from Residential Life