Harvard Business School Online

Leadership Principles December 2025 Calendar


To earn the Certificate of Completion in Leadership Principles, all modules and assignments must be completed by 1:00 p.m. Eastern Time (UTC 18:00) on Wednesday, February 4, 2026. All modules open upon completion of the previous module. To help you stay on track, we recommend completing each module according to the following schedule, spending approximately 6 - 8 hours on each module.
Break Reminder: No required deadlines or new modules released from December 22, 2025 through January 4, 2026
Please note that the prework 360 assessment hosted by Korn Ferry has a required deadline of Tuesday, January 6, 2026. This is a fixed deadline, and extensions will not be granted.

Enrolled participants will retain access to the course until April 5, 2026. Note: Each week is separated by an empty row. Any weeks without modules or assignments opening or due are not listed below. 

Module / Assignment Status Date
Leadership Principles Course Begins Wednesday, December 10, 2025
Module 0 Due 11:59 p.m. Eastern Time (Fixed) Tuesday, January 6, 2026
Module 1 Opens Wednesday, January 7, 2026
Module 1: Taking Charge  Due (Recommended) Wednesday, January 14, 2026
Module 2: Leading Your Team  Due (Recommended) Wednesday, January 21, 2026
Leadership Imprint Lesson  Due (Recommended) Friday, January 23, 2026
Module 3: Unleashing Potential in Yourself and Others  Due (Recommended) Wednesday, January 28, 2026
Module 4: Your Network  Due 1:00 p.m. Eastern Time (Required) Wednesday, February 4, 2026

To add this calendar to your personal Google, Outlook, or Apple Calendar, download the subscription calendar.

• For a step-by-step guide on how to add this calendar to your personal calendar, visit the calendar download instructions.

To access the course calendar without adding it to your personal calendar, visit the Google Calendar online.

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