diff --git a/api/graphql.go b/api/graphql.go
index 7841b1f..dbcb7df 100644
--- a/api/graphql.go
+++ b/api/graphql.go
@@ -388,8 +388,8 @@ func NewSchema(config Config) (graphql.Schema, error) {
 				"collect_count": &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中收藏数等于指定值的"},
 				"article_id":    &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定文章ID的"},
 				"user_id":       &graphql.ArgumentConfig{Type: graphql.Int, Description: "筛选图像中属于指定用户ID的"},
-				"create_time":   &graphql.ArgumentConfig{Type: graphql.DateTime, Description: "筛选图像中创建时间等于指定值的"},
-				"update_time":   &graphql.ArgumentConfig{Type: graphql.DateTime, Description: "筛选图像中更新时间等于指定值的"},
+				"create_time":   &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中创建时间等于指定值的"},
+				"update_time":   &graphql.ArgumentConfig{Type: graphql.String, Description: "筛选图像中更新时间等于指定值的"},
 				"first":         &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中的前n個元素)"},
 				"last":          &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中的最後n個元素)"},
 				"after":         &graphql.ArgumentConfig{Type: graphql.Int, Description: "翻页参数(傳回清單中指定遊標之後的元素)"},
@@ -409,9 +409,13 @@ func NewSchema(config Config) (graphql.Schema, error) {
 					Orientation string
 					Sort        string
 					Order       string
+					CreateTime  string `json:"create_time"`
+					UpdateTime  string
 				}
 				mapstructure.Decode(p.Args, &args)
 
+				fmt.Println("args.CreateTime:", args.CreateTime)
+
 				// 限制长度防止全表扫描
 				var limit = 10
 				if args.First != 0 {
@@ -425,7 +429,7 @@ func NewSchema(config Config) (graphql.Schema, error) {
 				var query = db.Limit(limit)
 
 				// 参数映射
-				var argFormat = []string{"id", "width", "height", "content", "remark", "description", "tags", "rank", "comment_num", "praise_count", "collect_count", "article_id", "user_id", "create_time", "update_time"}
+				var argFormat = []string{"id", "width", "height", "content", "remark", "description", "tags", "rank", "comment_num", "praise_count", "collect_count", "article_id", "user_id"}
 
 				// 筛选条件
 				for _, format := range argFormat {
@@ -519,6 +523,24 @@ func NewSchema(config Config) (graphql.Schema, error) {
 					id_list = append(id_list, ids)
 				}
 
+				// 筛选:时间段
+				applyTimeCondition := func(name string, str string) {
+					parts := strings.Split(str, "-")
+					query = query.Where(fmt.Sprintf("YEAR(%s) = ?", name), parts[0])
+					if len(parts) > 1 {
+						query = query.Where(fmt.Sprintf("MONTH(%s) = ?", name), parts[1])
+					}
+					if len(parts) > 2 {
+						query = query.Where(fmt.Sprintf("DAY(%s) = ?", name), parts[2])
+					}
+				}
+
+				if createTime, ok := p.Args["create_time"].(string); ok && createTime != "" {
+					applyTimeCondition("create_time", createTime)
+				} else if updateTime, ok := p.Args["update_time"].(string); ok && updateTime != "" {
+					applyTimeCondition("update_time", updateTime)
+				}
+
 				// 数据库中筛选:横屏纵屏
 				if args.Orientation != "" {
 					query.Where("article_orientation = ?", args.Orientation)