diff --git a/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandler.java b/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandler.java
index cb426c1f..86e3b688 100644
--- a/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandler.java
+++ b/powerjob-server/powerjob-server-core/src/main/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandler.java
@@ -30,7 +30,7 @@ import java.util.concurrent.TimeUnit;
 public class DailyTimeIntervalStrategyHandler implements TimingStrategyHandler {
 
     /**
-     * 使用中国人的星期！！！
+     * 使用中国星期！！！
      */
     private static final Set<Integer> ALL_DAY = Sets.newHashSet(1, 2, 3, 4, 5, 6, 7);
 
diff --git a/powerjob-server/powerjob-server-starter/src/test/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandlerTest.java b/powerjob-server/powerjob-server-starter/src/test/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandlerTest.java
index df6a83c5..b058ee0c 100644
--- a/powerjob-server/powerjob-server-starter/src/test/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandlerTest.java
+++ b/powerjob-server/powerjob-server-starter/src/test/java/tech/powerjob/server/core/scheduler/auxiliary/impl/DailyTimeIntervalStrategyHandlerTest.java
@@ -1,13 +1,19 @@
 package tech.powerjob.server.core.scheduler.auxiliary.impl;
 
+import com.alibaba.fastjson.JSONArray;
+import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.time.DateFormatUtils;
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
+import tech.powerjob.common.OmsConstant;
+import tech.powerjob.common.exception.PowerJobException;
+import tech.powerjob.common.serialize.JsonUtils;
 
+import java.util.List;
 import java.util.Set;
 
-import static org.junit.jupiter.api.Assertions.*;
-
 /**
  * DailyTimeIntervalStrategyHandler
  * @author 550w
@@ -16,6 +22,8 @@ import static org.junit.jupiter.api.Assertions.*;
 @Slf4j
 class DailyTimeIntervalStrategyHandlerTest {
 
+    private static final DailyTimeIntervalStrategyHandler HD = new DailyTimeIntervalStrategyHandler();
+
     @Test
     void calculateInRangeTime() {
 
@@ -36,12 +44,47 @@ class DailyTimeIntervalStrategyHandlerTest {
         // 星期不满足（2023-02-15 11:00:00）
         Long notTodayStartTs = DailyTimeIntervalStrategyHandler.calculateInRangeTime(ts, simpleBuild("11:00:00", "12:15:00", Sets.newHashSet(3)));
         assert notTodayStartTs.equals(1676430000000L);
+    }
 
+    @Test
+    void testValid() throws Exception {
+        // 合法数据
+        HD.validate(JsonUtils.toJSONString(simpleBuild("12:33:33", "13:33:33", null)));
+        HD.validate(JsonUtils.toJSONString(simpleBuild("12:33:33", "13:33:33", Sets.newHashSet(1, 2, 3))));
+
+        // start > end
+        Assertions.assertThrowsExactly(IllegalArgumentException.class, () -> {
+            HD.validate(JsonUtils.toJSONString(simpleBuild("17:33:33", "13:33:33", null)));
+        });
+
+        // start is empty
+        Assertions.assertThrowsExactly(PowerJobException.class, () -> {
+            HD.validate(JsonUtils.toJSONString(simpleBuild(null, "13:33:33", null)));
+        });
+    }
+
+    @Test
+    void testCalculateNextTriggerTime() {
+        long ts = 1676126794874L;
+        String expression = JsonUtils.toJSONString(simpleBuild("12:33:33", "15:34:33", Sets.newHashSet(1, 4)));
+        int i = 0;
+        List<Long> ret = Lists.newArrayList();
+        for (;; i++) {
+            Long triggerTime = HD.calculateNextTriggerTime(ts, expression, 1276126794874L, 1676735920000L);
+            if (triggerTime == null) {
+                break;
+            }
+            ret.add(triggerTime);
+            ts = triggerTime;
+            log.info("[DailyTimeIntervalStrategyHandlerTest] [calculateNextTriggerTime] {}st ->ts={},date={}", i, triggerTime, DateFormatUtils.format(triggerTime, OmsConstant.TIME_PATTERN));
+        }
+        assert i == 8;
+        assert ret.equals(JSONArray.parseArray("[1676262813000, 1676266413000, 1676270013000, 1676273613000, 1676522013000, 1676525613000, 1676529213000, 1676532813000]", Long.class));
     }
 
     private static DailyTimeIntervalStrategyHandler.DailyTimeIntervalExpress simpleBuild(String startTimeOfDay, String endTimeOfDay, Set<Integer> days) {
         DailyTimeIntervalStrategyHandler.DailyTimeIntervalExpress ep = new DailyTimeIntervalStrategyHandler.DailyTimeIntervalExpress();
-        ep.setInterval(30L);
+        ep.setInterval(3600L);
         ep.setStartTimeOfDay(startTimeOfDay);
         ep.setEndTimeOfDay(endTimeOfDay);
         ep.setDaysOfWeek(days);