diff --git a/api/controller/System.go b/api/controller/System.go
index 03a3566..5d77fdc 100644
--- a/api/controller/System.go
+++ b/api/controller/System.go
@@ -90,27 +90,23 @@ func (b *System) PutSystemTime(c *gin.Context) {
 		return
 	}
 
-	t, err := time.ParseInLocation("2006-01-02 15:04:05", req.StartTime, location)
+	startTime, err := time.ParseInLocation("2006-01-02 15:04:05", req.StartTime, location)
 	if err != nil {
 		responses.FailWithMessage("修改失败", c)
 		return
 	}
 
-	startTime := model.LocalTime(t)
-
-	if &startTime != systemTime.StartTime {
+	if model.LocalTime(startTime) != *systemTime.StartTime {
 		systemTimeData["start_time"] = req.StartTime
 	}
 
-	t, err = time.ParseInLocation("2006-01-02 15:04:05", req.EndTime, location)
+	endTime, err := time.ParseInLocation("2006-01-02 15:04:05", req.EndTime, location)
 	if err != nil {
 		responses.FailWithMessage("修改失败", c)
 		return
 	}
 
-	endTime := model.LocalTime(t)
-
-	if &endTime != systemTime.EndTime {
+	if model.LocalTime(endTime) != *systemTime.EndTime {
 		systemTimeData["end_time"] = req.EndTime
 	}
 
@@ -130,6 +126,26 @@ func (b *System) PutSystemTime(c *gin.Context) {
 			return
 		}
 
+		// 增加过期时间缓存
+		redisKey := "VoteSystemTime"
+		// 当前时间
+		now := time.Now()
+
+		duration := endTime.Sub(now)
+		if duration < 0 {
+			tx.Rollback()
+			responses.FailWithMessage("结束时间错误", c)
+			return
+		}
+
+		// 添加缓存
+		_, err = global.Redis.Set(c, redisKey, "1", duration).Result()
+		if err != nil {
+			tx.Rollback()
+			responses.FailWithMessage("修改失败", c)
+			return
+		}
+
 		tx.Commit()
 	}