[I] [Studio][Bug] One-time maintenance windows silently shift nonexistent DST timestamps [rocketmq-dashboard]

["NUAAwqy (via GitHub)" <gi...@apache.org>]

NUAAwqy opened a new issue, #5098:
URL: https://github.com/apache/rocketmq-dashboard/issues/5098

   - [x] I searched open issues and pull requests and did not find a duplicate.
   - [x] This is a RocketMQ Studio frontend defect.
   - [x] I reproduced it on the current `rocketmq-studio` branch.
   
   ### Studio Version
   
   - Branch: `rocketmq-studio`
   - Commit: `a562601d`
   - Built from source
   
   ### Runtime Environment
   
   - Browser time zone: any IANA zone with a spring-forward DST gap (reproduced with `America/New_York`)
   - Node.js: 24.11.1 (automated regression test)
   - Connected RocketMQ cluster: not required; the defect occurs before the request is sent
   
   ### Describe the Bug
   
   The one-time maintenance-window form converts `datetime-local` values with the JavaScript `Date` constructor. For a wall-clock time that does not exist during a spring-forward transition, JavaScript silently normalizes the input to a later time. Recurring maintenance windows already use the IANA-zone conversion utility, which rejects the same invalid input.
   
   ### Steps to Reproduce
   
   1. Use a browser time zone with a DST spring-forward transition, such as `America/New_York`.
   2. Open **System Alerts** -> **Maintenance windows**.
   3. Choose a one-time window and enter `2026-03-08T02:30`.
   4. Submit the form.
   
   ### What Did You Expect to See?
   
   The form should reject the nonexistent wall-clock time and avoid sending a shifted maintenance window.
   
   ### What Did You See Instead?
   
   The local `Date` conversion normalizes `02:30` to `03:30`, so the request can contain a maintenance window shifted by one hour.
   
   ### Additional Context
   
   The existing `zonedLocalDateTimeToUtc` helper already detects nonexistent local times. Reusing that conversion for browser-local one-time windows makes one-time and recurring behavior consistent.
   
   ### Are You Willing to Submit a Pull Request?
   
   - [x] Yes, I am willing to submit a pull request.


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Re: [I] [Studio][Bug] One-time maintenance windows silently shift nonexistent DST timestamps [rocketmq-dashboard]

["github-actions[bot] (via GitHub)" <gi...@apache.org>]

github-actions[bot] closed issue #5098: [Studio][Bug] One-time maintenance windows silently shift nonexistent DST timestamps
URL: https://github.com/apache/rocketmq-dashboard/issues/5098


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Re: [I] [Studio][Bug] One-time maintenance windows silently shift nonexistent DST timestamps [rocketmq-dashboard]

["github-actions[bot] (via GitHub)" <gi...@apache.org>]

github-actions[bot] commented on issue #5098:
URL: https://github.com/apache/rocketmq-dashboard/issues/5098#issuecomment-5963519823

   This issue has been automatically closed because there has been no activity for 7 days. If you believe this issue is still relevant, please reopen it with updated information.


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