diff --git a/src/main/java/com/gxwebsoft/WebSoftApplication.java b/src/main/java/com/gxwebsoft/WebSoftApplication.java
index 0baf59a..f60bc53 100644
--- a/src/main/java/com/gxwebsoft/WebSoftApplication.java
+++ b/src/main/java/com/gxwebsoft/WebSoftApplication.java
@@ -30,8 +30,15 @@ import java.util.TimeZone;
 @EnableWebSocket
 public class WebSoftApplication {
 
+    static {
+        // 必须在任何 LocalDateTime.now() / JDBC 初始化之前生效。
+        // 注意：1Panel 启动命令里 -Duser.timezone 必须写在 -jar 前面，写在后面会被当成程序参数忽略。
+        System.setProperty("user.timezone", "Asia/Shanghai");
+        TimeZone.setDefault(TimeZone.getTimeZone("Asia/Shanghai"));
+    }
+
     public static void main(String[] args) {
-        // Docker 默认 UTC，未设置 TZ 时 LocalDateTime.now() 会比北京时间慢 8 小时
+        System.setProperty("user.timezone", "Asia/Shanghai");
         TimeZone.setDefault(TimeZone.getTimeZone("Asia/Shanghai"));
         SpringApplication.run(WebSoftApplication.class, args);
     }
diff --git a/src/main/java/com/gxwebsoft/gxmu/controller/DeclareController.java b/src/main/java/com/gxwebsoft/gxmu/controller/DeclareController.java
index f7f0ce7..de9bfae 100644
--- a/src/main/java/com/gxwebsoft/gxmu/controller/DeclareController.java
+++ b/src/main/java/com/gxwebsoft/gxmu/controller/DeclareController.java
@@ -17,6 +17,8 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.web.bind.annotation.*;
 
 import javax.annotation.Resource;
+import java.time.LocalDateTime;
+import java.time.ZoneId;
 import java.util.List;
 
 /**
@@ -30,6 +32,7 @@ import java.util.List;
 @RequestMapping("/api/gxmu/declare")
 public class DeclareController extends BaseController {
     private static final String TZBCY_MODULE = "gxmu_tzbcy_form";
+    private static final ZoneId BEIJING = ZoneId.of("Asia/Shanghai");
 
     @Resource
     private DeclareService declareService;
@@ -75,6 +78,10 @@ public class DeclareController extends BaseController {
         if (validateMessage != null) {
             return fail(validateMessage);
         }
+        // 显式写北京时间，避免容器 JVM/库会话仍为 UTC 时 DEFAULT CURRENT_TIMESTAMP 偏 8 小时
+        LocalDateTime now = LocalDateTime.now(BEIJING);
+        declare.setCreateTime(now);
+        declare.setUpdateTime(now);
         if (declareService.save(declare)) {
             return success("添加成功");
         }
@@ -88,6 +95,7 @@ public class DeclareController extends BaseController {
         if (validateMessage != null) {
             return fail(validateMessage);
         }
+        declare.setUpdateTime(LocalDateTime.now(BEIJING));
         if (declareService.updateById(declare)) {
             return success("修改成功");
         }
diff --git a/src/main/java/com/gxwebsoft/gxmu/mapper/xml/DeclareMapper.xml b/src/main/java/com/gxwebsoft/gxmu/mapper/xml/DeclareMapper.xml
index 4fa4817..5187878 100644
--- a/src/main/java/com/gxwebsoft/gxmu/mapper/xml/DeclareMapper.xml
+++ b/src/main/java/com/gxwebsoft/gxmu/mapper/xml/DeclareMapper.xml
@@ -52,8 +52,10 @@
             <if test="param.createTimeEnd != null">
                 AND a.create_time &lt;= #{param.createTimeEnd}
             </if>
-            <if test="param.usable != null">
-                AND a.start_time &lt;= now() AND a.end_time &gt;= now()
+            <!-- start/end 存的是北京时间字符串；库会话若为 UTC，直接 now() 会把「刚开始」的申报滤掉 -->
+            <if test="param.usable != null and param.usable == true">
+                AND a.start_time &lt;= DATE_FORMAT(CONVERT_TZ(UTC_TIMESTAMP(), '+00:00', '+08:00'), '%Y-%m-%d %H:%i:%s')
+                AND a.end_time &gt;= DATE_FORMAT(CONVERT_TZ(UTC_TIMESTAMP(), '+00:00', '+08:00'), '%Y-%m-%d %H:%i:%s')
             </if>
             <if test="param.deleted != null">
                 AND a.deleted = #{param.deleted}