diff --git a/jsowell-common/src/main/java/com/jsowell/common/util/DateUtils.java b/jsowell-common/src/main/java/com/jsowell/common/util/DateUtils.java
index d4e06a6ed..6ed24ef93 100644
--- a/jsowell-common/src/main/java/com/jsowell/common/util/DateUtils.java
+++ b/jsowell-common/src/main/java/com/jsowell/common/util/DateUtils.java
@@ -1135,10 +1135,39 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
         return lastDayOfMonth.format(formatter);
     }
 
-    public static void main(String[] args) {
-        String dateString = "2024-09-20 13:35:56";
-        long minutesPassed = minutesSince(dateString);
-        System.out.println(minutesPassed);
+    /**
+     * 判断目标时间是否在优惠时间段内
+     * @param startStr 开始时间(HH:mm)
+     * @param endStr   结束时间(HH:mm)
+     * @param targetStr 目标时间(HH:mm:ss)
+     * @return 是否在优惠时段
+     */
+    public static boolean isInDiscountPeriod(String startStr, String endStr, String targetStr) {
+        LocalTime start = LocalTime.parse(startStr);
+        LocalTime end = LocalTime.parse(endStr);
+        LocalTime target = LocalTime.parse(targetStr);
+        return isInDiscountPeriod(start, end, target);
+    }
+
+    /**
+     * 判断目标时间是否在优惠时间段内
+     * @param start 开始时间(HH:mm)
+     * @param end   结束时间(HH:mm)
+     * @param target 目标时间(HH:mm:ss)
+     * @return 是否在优惠时段
+     */
+    public static boolean isInDiscountPeriod(LocalTime start, LocalTime end, LocalTime target) {
+        // 开始时间等于结束时间即判定为全天
+        if (start.equals(end)) {
+            return true;
+        }
+        if (start.isAfter(end)) {
+            // 跨天判断逻辑
+            return !target.isBefore(start) || target.isBefore(end);
+        } else {
+            // 普通时段判断逻辑
+            return !target.isBefore(start) && target.isBefore(end);
+        }
     }
 
 }