diff --git a/UPDATE.md b/UPDATE.md
index aef15f4..37be89b 100644
--- a/UPDATE.md
+++ b/UPDATE.md
@@ -1,6 +1,12 @@
 yexuejc-base 更新记录
 ------------------
 
+#### version ：1.4.4
+**time：2021-4-24 00:41:31** <br/>
+**branch：** master    <br/>
+**update：**     <br/>
+>1. JsonUtil类修复格式化出现的时区差：现使用TimeZone.getDefault()时区
+#
 #### version ：1.4.3
 **time：2021-2-6 11:42:49** <br/>
 **branch：** master    <br/>
diff --git a/pom.xml b/pom.xml
index 1163c67..fb9b02a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>top.yexuejc</groupId>
     <artifactId>yexuejc-base</artifactId>
-    <version>1.4.3</version>
+    <version>1.4.4</version>
 
     <name>${project.artifactId}</name>
     <url>https://github.com/yexuejc/yexuejc-base</url>
diff --git a/src/main/java/com/yexuejc/base/util/JsonUtil.java b/src/main/java/com/yexuejc/base/util/JsonUtil.java
index b7a4c6d..2225370 100644
--- a/src/main/java/com/yexuejc/base/util/JsonUtil.java
+++ b/src/main/java/com/yexuejc/base/util/JsonUtil.java
@@ -10,6 +10,7 @@ import com.fasterxml.jackson.databind.type.MapType;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Map;
+import java.util.TimeZone;
 import java.util.logging.Logger;
 
 /**
@@ -46,6 +47,8 @@ public class JsonUtil {
         objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);
         objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
         objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
+        //设置一下时区，可以和程序同步避免时区问题
+        objectMapper.setTimeZone(TimeZone.getDefault());
         objectMapper.setDateFormat(DateUtil.DATE_TIME_FORMAT);
     }
 
@@ -55,6 +58,15 @@ public class JsonUtil {
         objectMapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
     }
 
+    /**
+     * 这个设置不能改变JsonUtil自带的objectMapper设置，只能修改传入objMapper的设置
+     * @param objMapper
+     */
+    public static void initSnakeCase(ObjectMapper objMapper) {
+        //驼峰下划线互转
+        objMapper.setPropertyNamingStrategy(PropertyNamingStrategy.SNAKE_CASE);
+    }
+
     /**
      * 每调用一次生成一个全新的ObjectMapper供特殊场景使用，与通用ObjectMapper没有关系
      *
@@ -66,6 +78,15 @@ public class JsonUtil {
         return objectMapper;
     }
 
+    /**
+     * 返回 ObjectMapper对象，供外部设置特定参数
+     *
+     * @return
+     */
+    public static ObjectMapper getObjectMapper() {
+        return objectMapper;
+    }
+
     /**
      * 将json转换为某个类
      *
@@ -106,7 +127,7 @@ public class JsonUtil {
             log.warning("json to Object JsonMappingException.\n" + e.getMessage());
         } catch (IOException e) {
             log.warning("json to Object IOException.\n" + e.getMessage());
-        }catch (Exception e){
+        } catch (Exception e) {
             e.printStackTrace();
         }