Dear Zabbix Support Team,

I hope this email finds you well.

We have identified an unexpected behavior in Zabbix 7.0.17 related to time format display when the frontend language is set to zh_CN. This issue did not occur in versions 7.0.16 and earlier. Below are the detailed steps to reproduce the issue.

​Steps to Reproduce​

1. ​Configuration Changes:

• • Ensure the Zabbix frontend language is set to zh_CN (Simplified Chinese).
    • Navigate to: ​Administration → Users → [Select User] → Language.
    • Set language to zh_CN and save changes.

1. ​Navigate to Screen Title:

• • Go to any screen displaying time values (e.g., ​Monitoring → Dashboard, ​Latest Data, or ​Problem View).

1. ​Observe Time Format:

• • Check the format of time values (e.g., event timestamps, graph axes, or data tables).

​Result (Observed in Zabbix 7.0.17)​​

• Time values are displayed in ​12-hour format with AM/PM​ (e.g., 2:30 PM).
• See screenshot: [Attach screenshot showing 12-hour format].

​Expected Behavior (Zabbix 7.0.16 and Earlier)​​

• Time values should follow the ​24-hour format​ (e.g., 14:30).
• See screenshot: [Attach screenshot from 7.0.16 showing 24-hour format].

​Questions​

1. Is this change intentional in Zabbix 7.0.17?
2. If yes, is there a configuration option to force 24-hour format for zh_CN?
3. If no, could this be a regression bug?

Please let us know if you need additional details (e.g., browser logs, system locale settings). We appreciate your prompt clarification.

Best regards,
Alex Wong