Calendar in MS Project is useful to set up working and non-working hours or days as per the organization’s or project’s working timings. User can use MS Project’s in-built calendars or customize them or build new calendars as required.
MS Project provides in-built calendars, which can be used as according to common needs of project. Here are the 3 base calendars:
1. Standard: Working time Monday-Friday from 8 a.m. to 5 p.m. with lunch from 12 to 1 p.m.
2. Night Shift: Working time Monday-Friday from 11 p.m. to 8 a.m. with lunch from 3 to 4 a.m.
3. 24 Hours: Working 24 hours a day, 7 days a week, suitable for projects that run three shifts or tasks that run 24 hours a day.
These in-built calendars are available at Project tab => Change working time command

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Calendar can be applied at 3 levels in MS Project. They are
1. Project calendar: sets the standard working days and times for the entire project
2. Resource calendar: suitable if an individual or a group of resources work in specialized schedules
3. Task calendar: special work times that apply only to specific task(s).

New calendars can be created through Project tab => Change working time command => Create new calendar button.

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By clicking on ‘Create New Calendar’ button, user can either create a new base calendar or make copy of existing base calendar e.g copy of standard base calendar.

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Once the user clicks on OK, it create new calendar say ‘24x7Coach Calendar’. User can see the dialog that shows the legend, month-year calendar and two tabs
• Work Weeks: Work weeks identify the workdays and non-workdays in a 7-day week, as well as the work hours for each workday. User can set the working hours on given day in given date range.
• Exceptions: mainly for nonworking time, holidays. Setting up recurring exceptions is also possible through this.

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To change the default behavior for example Monday as holiday instead of Saturday & Sunday, user can simply follow this instructions:
• Create a new calendar
• Click on work week tab
• Select row ‘default’ and click on details
• Select Monday and select ‘Set days to nonworking time’ radio button
• Select Sunday & Saturday, select ‘Set day(s) to these specific working times’ and set from and to time as 8:00 AM – 12:00 PM and 01:00 PM – 05:00 PM.

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That’s it new calendar ready with Monday as holiday.


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