Microsoft KB Archive/112382

Project: 24-Hour Calendar May Calculate Duration Incorrectly

PSS ID Number: Q112382 Article last modified on 11-16-1994

3.00 3.00a | 3.00

WINDOWS | MACINTOSH

= SUMMARY =

When you are using a 24-hour calendar, and you enter a task by typing only the time in the Scheduled Start and Scheduled Finish fields, the duration of the task will be calculated incorrectly.

NOTE: This problem does not occur in later versions of Microsoft Project.

= WORKAROUNDS =

To work around this problem, enter the duration and then enter the time in Scheduled Start. Scheduled Finish will be calculated and the duration will be correct.

NOTE: If the 24-hour period does not have to equal 1 day, then you can change the Default Hours/Days in the Preferences dialog box (from the Options menu, choose Preferences) to 8 hours. This change also allows the duration to calculate correctly.

= MORE INFORMATION =

Steps to Reproduce Behavior

 * 1) From the File menu, choose New.
 * 2) Choose Base Calendars from the Options menu, and modify the Standard Calendar for 24 hours.
 * 3) From the Options menu, choose Preferences.
 * 4) Set the Default Duration Units to Hours.
 * 5) Use the Default Date Format 1/31/92 12:33pm. (Any of the date formats may be used with the same result.)
 * 6) Set the Default Hours/Days to 24:00, and choose OK.
 * 7) On a blank task, click in the Scheduled Start Field, and type 8:00am.
 * 8) Press the TAB key to move to the Scheduled Finish field, and type “9:00am” (without the quotation marks).

A duration of 49h is calculated even though the expected calculation is 1h.

KBCategory: kbusage KBSubcategory:

= Additional reference words: 3.00 3.00a Date Format =

Copyright Microsoft Corporation 1994.