Adding holidaysto your MSProjectcalendar can be an effective method to optimize planning and management of projects. It allows you to consider important non-working days and ensures that resources are scheduled accordingly. In this guide, you will learn how to manually add holidays to your calendar.
Key Insights
- Holidays can be entered as exceptions in the working time calendar.
- The specific period for holidays must be defined (start and end).
- Holidays can be defined either as non-working days or with specific working hours.
Step-by-Step Guide
To manualadd holidays to your MS Project calendar, follow these steps:
First, open your project in MS Project. To add holidays, navigate to “Project” in the main menu bar. Here, select the “Working Time” option. This setting allows you to make changes to your working time calendar.

In the dialog that opens, you will find the option to add exceptions. If you have already used special working weeks, this will also be displayed here. Click on “Exceptions” to add a new holiday.
Now you have the opportunity to name the holiday. For example, enter “Christmas” as the holiday. Determine the start date of this holiday, for example, December 24. You also need to define the exact end date, so that this time span is clearly defined.

After entering the name and time span, the holiday will be highlighted in red in your calendar. It is important to pay attention to which calendar you are working in, so that the holidays are displayed in the correct places.
After selecting the holiday, click on “Details” to make further adjustments. You can specify whether this day should be a non-working day or if specific working hours apply, for example, only from 8 AM to 12 PM.

Additionally, you can adjust the frequency with which the holiday occurs. In MS Project, you have the option to repeat holidays daily, weekly, monthly, or yearly. Make the appropriate selection here, e.g., annually for Christmas.
You can also add further holidays, such as the Christmas holidays. For example, you could enterthe dates from December 25 to December 27 to account for all relevant non-working days.
If there are changes to the holidays, it is possible to adjust them later. After entering, your holidays will be visible as work exceptions in the calendar, usually displayed in blue.
You have now successfully added holidays to your MS Project calendar. These steps can help you consider all relevant holidays for your company and ensure more precise project planning.
Summary – Manually Creating Holidays in MS Project
In this guide, you have learned how to manually add holidays to your MS Project calendar. This knowledge is essential for effective project planning and helps you to keep important non-working days in mind.
FAQ
How do I add a holiday in MS Project?You need to go to “Project” in the main menu and then “Working Time” to add exceptions.
What happens if I enter a holiday incorrectly?You can edit and adjust the holidays at any time.
Can I add multiple holidays at the same time?Yes, you can add multiple holidays sequentially by repeating the steps for each holiday.
How often can I repeat a holiday in the calendar?Holidays can be repeated daily, weekly, monthly, or yearly.