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What impact does a timezone change have?

Last Updated:

Applies to



  • ONTAP does not automatically adjust scheduled jobs relying on the cron scheduler and must be adjusted manually
  • Kerberos authentication is impacted for both KDC and client if the UTC time is more than 5 minutes off
  • Kerberos should not be impacted but it is good to check the clock is accurate compared to the UTC time
  • If the time zone is currently set to UTC then changing time zones may affect the clock accuracy by however many hours the new time zone is from UTC
  • If the time zone is not currently set to UTC then there will be no impact
  • Example: Adjusting from UTC to CET will cause the clock to advance 1 hour in winter or 2 hours in summer, but going from EST to CST will not cause the clock to change

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