How To Fix JO013 - Time difference was calculated using Gregorian calendar

JO013 - Overview

• Message type: E = Error

• Message class: JO - Project Information System: All Overviews

• Message number: 013

• Message text: Time difference was calculated using Gregorian calendar

What causes this issue?

No factory calendar could be found for calculating the time difference.

System Response

The system uses a Gregorian calendar.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message JO013 - Time difference was calculated using Gregorian calendar ?

  The SAP error message JO013, which states "Time difference was calculated using Gregorian calendar," typically occurs in the context of time management or scheduling within SAP systems. This error is often related to issues with date and time calculations, particularly when the system is trying to compute time differences that involve dates that may not align with the Gregorian calendar.
  
  Cause:
  
  Date Format Issues: The error can arise if the system is trying to process dates that are not in the expected Gregorian format or if there are discrepancies in the date settings.
  Time Zone Settings: Incorrect time zone settings in the user profile or system configuration can lead to this error.
  Calendar Settings: If the calendar settings in the system are not properly configured to use the Gregorian calendar, it can lead to this error.
  Data Entry Errors: Manual entry of dates that are outside the valid range or incorrectly formatted can trigger this