diff --git a/src/main/java/com/biutag/supervision/pojo/entity/NegativeHistory.java b/src/main/java/com/biutag/supervision/pojo/entity/NegativeHistory.java
index 7d98895..a4b7fcc 100644
--- a/src/main/java/com/biutag/supervision/pojo/entity/NegativeHistory.java
+++ b/src/main/java/com/biutag/supervision/pojo/entity/NegativeHistory.java
@@ -47,4 +47,8 @@ public class NegativeHistory {
 
     private String departName;
 
+    @TableField(exist = false)
+    // 节点耗时（剔除节假日的秒数）
+    private Long duration;
+
 }
\ No newline at end of file
diff --git a/src/main/java/com/biutag/supervision/service/NegativeService.java b/src/main/java/com/biutag/supervision/service/NegativeService.java
index a3e7024..28b6e3a 100644
--- a/src/main/java/com/biutag/supervision/service/NegativeService.java
+++ b/src/main/java/com/biutag/supervision/service/NegativeService.java
@@ -126,6 +126,12 @@ public class NegativeService extends ServiceImpl<NegativeMapper, Negative> {
         if (StrUtil.isNotBlank(vo.getProblemSourcesCode())) {
             vo.setFileClasses(fileClassService.list(vo.getProblemSourcesCode()));
         }
+        // 计算每个节点的用时（剔除节假日）
+        for (int i = 0; i < flows.size(); i++) {
+            LocalDateTime currentTime = flows.get(i).getCrtTime();
+            LocalDateTime previousTime = i == 0 ? negative.getCrtTime() : flows.get(i - 1).getCrtTime();
+            flows.get(i).setDuration(TimeUtil.calculateWorkdayDuration(previousTime, currentTime));
+        }
         NegativeDetail detail = new NegativeDetail()
                 .setNegative(vo)
                 .setActionHistory(flows)