Lys-is opened a new issue, #21269:
URL: https://github.com/apache/echarts/issues/21269

   ### Version
   
   5.5.1
   
   ### Link to Minimal Reproduction
   
   https://codesandbox.io/p/sandbox/jjh947
   
   ### Steps to Reproduce
   
   just open https://codesandbox.io/p/sandbox/jjh947
   
   The bug is reproduced with the xAxis type = time and add any bars. 
   
   
   
   
   ### Current Behavior
   
   Bars offset totally incorrect! 
   
   
![Image](https://github.com/user-attachments/assets/a2e76017-dc14-4d74-bf8b-40bc1e0c9729)
   
   ### Expected Behavior
   
   The bars should be positioned exactly in their positions.
   
   ### Environment
   
   ```markdown
   - OS: Ubuntu 20.04.6
   - Browser: Chrome 139.0.7258.127
   - Framework: Vue@2
   ```
   
   ### Any additional comments?
   
   
[src/layout/barGrid.ts](https://github.com/apache/echarts/blob/513918064ac2a0866433d434dc969220f12b9c1a/src/layout/barGrid.ts#L405-L414)
   
   
   ```
   let offset = -widthSum / 2;
   each(stacks, function (column, stackId) {
       result[coordSysName][stackId] = result[coordSysName][stackId] || {
           bandWidth: bandWidth,
           offset: offset,
           width: column.width
       } as BarWidthAndOffset[string][string];
   
   
       offset += column.width * (1 + barGapPercent);
   });
   ```
   
   if change it to
   ```
   each(stacks, function (column, stackId) {
       result[coordSysName][stackId] = result[coordSysName][stackId] || {
           bandWidth: bandWidth,
           offset: -column.width / 2,
           width: column.width
       } as BarWidthAndOffset[string][string];
   });
   ```
   Everything is working as it should, but it seems that offset is needed for 
something :)).  I have not found a single case where this would be necessary, 
everything seems to be working well.
   
   If you tell me where this offset curve is needed, I will try to fix it and 
send you an pull request.


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