Others

Fix Different Finish Dates in Microsoft Project Desktop and Server

Emma Brown Oct 1, 2026 868 views

Question details

The user is experiencing a discrepancy where the exact same task produces different finish dates in Microsoft Project Desktop compared to Project Server.

Why Do Microsoft Project Desktop and Project Server Show Different Finish Dates?

Product: Microsoft Project
Device & OS: not provided
Scenario: Comparing or syncing project schedules and task durations between desktop and server environments.
Observed behavior: Microsoft Project Desktop and Project Server display different finish dates for a task, despite the displayed work schedule appearing to be identical.

Before you start

Ensure you have administrative or adequate permission levels to view and modify both the global and enterprise calendars in Microsoft Project and Project Server.

Solution 1Recommended

Align Enterprise and Global Calendars

Discrepancies in finish dates are most commonly caused by mismatched calendar exceptions, holidays, or daily work-hour definitions between the desktop and server.

Microsoft Project calculates task finish dates based on working time. If the server's enterprise calendar differs even slightly from your desktop's global calendar, the calculation will yield different end dates.

Compare Standard Calendars

Open the enterprise Standard calendar and compare it directly with the global Standard calendar. Look closely for missing holidays or different working-time exceptions.

Check Resource Calendars

Review the individual resource calendars for any nonworking exceptions that might apply on the server but are missing locally.

Adjust Project Options for Work Hours

Navigate to Project Options and verify the hours per day and hours per week. If the enterprise calendar uses a seven-hour workday, ensure the work week is set to 35 hours instead of the default 40.

Consistency is Key: Matching the daily and weekly work hours exactly across both platforms usually resolves the majority of date calculation mismatches.

Solution 2

Analyze Task Durations in Days or Hours

Viewing task durations in weeks can obscure underlying mathematical differences in hour-based calculations.

Free Microsoft Office alternative

Manage Project Schedules and Reports with WPS Office

While Microsoft Project is built for complex server-based scheduling, WPS Office provides a free, lightweight, and highly compatible alternative for everyday project tracking, reporting, and Gantt charts using familiar spreadsheet and presentation tools.

1. Download and Install: Download WPS Office for free from the official website and install it on your device.
2. Access Project Templates: Open WPS Spreadsheet and search for 'Gantt Chart' or 'Project Schedule' in the built-in template library.
3. Customize Your Timeline: Enter your task names, start dates, and durations to automatically generate a visual project timeline without complex server syncing.

Highly compatible with Microsoft Excel, Word, and PowerPoint file formats.Easily create lightweight project tracking templates and Gantt charts in WPS Spreadsheet.Completely free to use with a familiar, user-friendly interface.Lightweight design ensures fast loading and smooth multitasking on any device.

microsoft office alternative - wps office

Frequently Asked Questions

How do work hour settings affect Microsoft Project finish dates?

If your calendar is set to a 7-hour workday but your Project Options assume a 40-hour work week instead of 35, the system will calculate task completions differently, extending or shortening the finish dates unexpectedly.

Why does changing the duration unit to hours help troubleshoot date issues?

Viewing tasks in hours instead of weeks removes the ambiguity of how many hours constitute a 'week' in your specific calendar settings, revealing the exact mathematical difference in the schedules between the desktop and server.

Do resource exceptions impact the overall project finish date?

Yes. If a specific resource assigned to a task has nonworking days (like vacations or altered shifts) in their server resource calendar but not locally, it will extend the finish date of that task on the server.

Where can I check for working-time exceptions in MS Project?

You can check exceptions by navigating to the Project tab, clicking 'Change Working Time', and reviewing the Exceptions tab for both the standard project calendars and individual resource calendars.

Office Quick Solutions