diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectReportServiceImpl.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectReportServiceImpl.java
index a80a30f..8090a93 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectReportServiceImpl.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectReportServiceImpl.java
@@ -114,12 +114,18 @@ public class OaProjectReportServiceImpl implements IOaProjectReportService {
      */
     @Override
     public Boolean insertByBo(OaProjectReportBo bo) {
-        // 检查今日是否已报工
-        OaProjectReportBo checkBo = new OaProjectReportBo();
-        checkBo.setUserId(LoginHelper.getUserId());
-        checkBo.setCreateTime(new Date());
-
-        QueryWrapper<OaProjectReport> queryWrapper = ClearbuildQueryWrapper(checkBo);
+        // 检查今日是否已报工（同一用户当天只允许运一条）
+        Long userId = LoginHelper.getUserId();
+        // 以上海时区计算“今天”的起止时间，避免数据库时区差异导致跨天误判
+        ZoneId zone = ZoneId.of("Asia/Shanghai");
+        LocalDate today = LocalDate.now(zone);
+        Date start = Date.from(today.atStartOfDay(zone).toInstant());
+        Date end = Date.from(today.plusDays(1).atStartOfDay(zone).toInstant());
+        QueryWrapper<OaProjectReport> queryWrapper = Wrappers.<OaProjectReport>query()
+                .eq("del_flag", 0)
+                .eq("user_id", userId)
+                .ge("create_time", start)
+                .lt("create_time", end);
         long count = baseMapper.selectCount(queryWrapper);
         if (count > 0) {
             throw new RuntimeException("今日已报工，不允许重复报工");