How To Fix 0S094 - Negative duration occurred; check the system clock

SAP Error Message - Details

• Message type: E = Error

• Message class: 0S - Messages for the SQL trace

• Message number: 094

• Message text: Negative duration occurred; check the system clock

What causes this issue?

A negative value duration was calculated, which is not possible.

System Response

The system terminates the display of the performance trace after the
error message.

How to fix this error?

Contact your operating system system administrator. The operating
system clock is not working properly.

Procedure for System Administrators

Ensure that the operating system clock is functioning properly.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 0S094 - Negative duration occurred; check the system clock ?

  The SAP error message 0S094 ("Negative duration occurred; check the system clock") typically indicates that there is a discrepancy in the time settings of the system, which can lead to negative time durations being calculated. This error often arises in scenarios involving time management, scheduling, or any processes that rely on accurate time calculations.
  Causes:
  
  System Clock Issues: The most common cause is that the system clock on the server or client machine is set incorrectly. This could be due to manual changes, time zone settings, or synchronization issues with a time server.
  Time Zone Mismatches: If the time zone settings are not consistent across different systems (e.g., application server, database server, and client), it can lead to negative duration calculations.
  Daylight Saving Time Changes: Changes in daylight saving time can also cause temporary discrepancies in time calculations.
  Data Entry Errors: Incorrectly entered time data (e.g., start and end times) can also lead to negative durations.
  
  Solutions:
  
  Check System Clock: Verify that the system clock on the server and client machines is set correctly. Ensure that the time, date, and time zone are accurate.
  Synchronize Time: Ensure that the system is synchronized with a reliable time source (e.g., NTP server). This can help prevent discrepancies due to clock drift.
  Review Time Zone Settings: Check the time zone settings in SAP and ensure they are consistent across all relevant systems. This includes the application server, database server, and user profiles.
  Check for Daylight Saving Time: If applicable, ensure that the system is correctly accounting for daylight saving time changes.
  Validate Data Entries: Review any time-related data entries to ensure that they are correct and do not lead to negative durations.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error. SAP frequently releases notes that address known issues and provide solutions.
  System Logs: Review system logs for any additional error messages or warnings that may provide more context about the issue.
  User Documentation: Consult SAP documentation for guidelines on time management and configuration settings related to time calculations.
  
  If the issue persists after checking the above points, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.