diff --git a/yuthon_hr_attendance/models/hr_attendance.py b/yuthon_hr_attendance/models/hr_attendance.py
index 3b4a1dc3b..b0348a08d 100644
--- a/yuthon_hr_attendance/models/hr_attendance.py
+++ b/yuthon_hr_attendance/models/hr_attendance.py
@@ -533,8 +533,8 @@ class HrAttendance(models.Model):
         确保选择期间每位员工至少有一条记录
         若没有则创建一条默认记录
         """
-        start_date = fields.Date.from_string('2025-12-01')
-        end_date = fields.Date.from_string('2025-12-15')
+        start_date = fields.Date.from_string('2025-12-15')
+        end_date = fields.Date.from_string('2025-12-31')
 
         existing_employees = self.env['hr.employee'].search([('name', 'not in', ['Administrator'])])
         if not existing_employees: