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https://issues.apache.org/jira/browse/SPARK-35053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17324397#comment-17324397
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Hyukjin Kwon commented on SPARK-35053:
--------------------------------------

Please refer to SPARK-32068

> Spark UI Stages->Tasks should show local launch time
> ----------------------------------------------------
>
>                 Key: SPARK-35053
>                 URL: https://issues.apache.org/jira/browse/SPARK-35053
>             Project: Spark
>          Issue Type: Bug
>          Components: Web UI
>    Affects Versions: 3.1.1
>            Reporter: LiDongwei
>            Priority: Minor
>
> Hello!
> The launch time of the task displayed on the Spark Stage tab is the UTC time 
> zone, which confuses users in non-UTC time zones. After checking some of the 
> code, it seems that it can be solved by modifying the following code.
> [File involved 
> |https://github.com/apache/spark/blob/master/core/src/main/resources/org/apache/spark/ui/static/utils.js]
>  
> Current :
> {code:java}
> // code placeholder
> function formatDate(date) {
>   if (date <= 0) return "-";
>   else {
>      var dt = new Date(date.replace("GMT", "Z"));
>      return formatDateString(dt);
>   }
> }
> {code}
> Updated (example):
> {code:java}
> // code placeholder
> function formatDate(date) {
>     if (date <= 0) {
>         return "-";
>     }
>     else {
>         let local = new Date();
>         let gmtTime = new Date(date.split(".")[0].replace("T", " "));
>         let res = new Date(gmtTime.getTime() - (local.getTimezoneOffset() * 
> 60000)).getTime();
>         return formatTimeMillis(res);
>     }
> }
> {code}
>  
>  



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