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How can I check if my system time is correctly updating when using a new NTP server?

Question & Answer


Question

How can I check if my system time is correctly updating when using a new NTP server?

Answer

You can see the logs of time synchronization by doing the following:

1. Run WRKLNK '/QIBM/USERDATA/OS400/TCPIP/NTP'
2. Take a 5 to display the file named QTOTxxxxxxxx (where x = today's date)
3. By default, the log updates every 30 minutes.  It will compare the current IBM i time to the NTP server, and it will adjust if there is a discrepancy.    You can adjust the update interval by running CHGNTPA and editing the "Client poll interval" parameter.
Here is a screenshot of an example log:
image-20250520121420-1

[{"Type":"MASTER","Line of Business":{"code":"LOB68","label":"Power HW"},"Business Unit":{"code":"BU070","label":"IBM Infrastructure"},"Product":{"code":"SWG60","label":"IBM i"},"ARM Category":[{"code":"a8m0z0000000CLHAA2","label":"Communications-\u003ESNTP or Time Synchronization"}],"ARM Case Number":"","Platform":[{"code":"PF012","label":"IBM i"}],"Version":"and future releases;7.3.0;7.4.0;7.5.0;7.6.0"}]

Document Information

Modified date:
29 May 2025

UID

ibm17233990