Set date formats, business hours / days and holiday list for your company to precisely calculate the project deliverables. You can also calculate the task duration based on the actual number of hours or days.
- Click
in the top navigation panel.
- Navigate to Portal Configuration > Date & Time Settings > Date & Time Settings tab.
- Set the Date Format, Time Format, and the First Day of the Week.
![](https://help.zoho.com/galleryDocuments/edbsn5c59e21489ab233e265cc0ddd0e052156aa3862718279ce6ee8ffa91802b5a4af123f43df2a1e33cc657ecda78518960?inline=true)
- Set how long the Business Hours are, for a day.
- Select Business Days of your work week. The days unchecked will be considered as weekends and the work item's duration will be calculated accordingly.
- Click Update when you are done with all the above settings.
The Business Hours, Business Days, and Configure Holidays settings are available in the Premium and Enterprise plans only.
The work duration that you define as Business Hours will be taken into account to calculate a task or a work item's duration.
Learn to configure the holidays in Zoho Projects here.
- Click
in the top navigation panel.
- Navigate to Portal Configuration > Date & Time Settings > Holidays tab.
- Enter the holiday details and click Add Holiday.
![](https://help.zoho.com/galleryDocuments/edbsn9031472ff6added38fd3d0a5e499e3e1060c704fbfbc47694e680b6dce329c28c94eb3adbb40bf04a835f2e039facd09?inline=true)
- To delete an existing holiday, hover over the holiday and Delete Holiday.
- You can select weekends or holidays displayed in gray color as start or end dates for tasks in pop out calendars. This option is available only in our Enterprise plan.
Business Hour Setting
Set your default business hours and the weekends for your organization.
- Click
in the top navigation panel.
- Navigate to Portal Configuration > Date & Time Settings > Date & Time Settings tab.
- Set the business hours in the Starts At and Ends At fields.
- Select the working days from the Business Days section.