How to update time zone information in ONTAP 9

https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/How_to_update_time_zone_information_in_ONTAP_9

Applies to

ONTAP 9

Description

All versions of ONTAP are affected by changes to timezone rules. These rules affect the local offset to the global Coordinated Universal Time (UTC) standard time, as well as the date and time when daylight saving time (DST) starts and ends for a specific geographic location.
Changes made by government authorities to the time zone rules in their region are reported to the Internet Assigned Numbers Authority (IANA).
- IANA releases new versions of the Time Zone Database files a few times a year to reflect the changes.
NetApp monitors updates to the IANA repository and automatically obtains the latest files, which are then compiled into the form required by ONTAP.
- The timezone rules used by ONTAP are a set of binary files, called the zoneinfo files, derived from IANA Time Zone Database.
- The files are packaged into a bundle that is installed with ONTAP and published to the NetApp support site.
- Each ONTAP version ships with the version of the zoneinfo files current at the time of release.

Note: The storage system will only need to be updated manually with new zoneinfo files if a change has been made to the specific timezone the storage system is configured in and that change will come into effect before the storage system can be upgraded to a new version of ONTAP that contains the new rules.

Procedure

Automatic Timezone Information Updates for ONTAP 9.13.1 and later

ONTAP 9.13.1 and later supports automatic update of time zone information using the Automated Firmware Update feature, if enabled. For more information, see: Automatic Firmware Updates

Manually updating timezone information for ONTAP 9.3 and later

Check the current version of zoneinfo files on the cluster

Run the following cluster shell command to determine the current version of the zoneinfo files:

cluster1::> cluster date zoneinfo show

Cluster Zoneinfo Version: 2022g

The latest version published by NetApp is available at Timezone Information for ONTAP

Download and install the zoneinfo files on the cluster

If required, download and install the latest version of zoneinfo files.

Log in to the NetApp Support site.
Download the appropriate timezone database update for your ONTAP version to the local system (by clicking on the link shown and selecting Save as... or Save to disk)
Copy the ZIP file to a local HTTP or FTP server.
Run the following command on one node in the cluster:

cluster1::> cluster date zoneinfo load-from-uri <uri-of-file-on-local-server>

Verify the correct version is now loaded on the cluster:

cluster1::> cluster date zoneinfo show Cluster Zoneinfo Version: 2024a