diff --git a/yuthon_will_task/models/yuthon_will_task.py b/yuthon_will_task/models/yuthon_will_task.py
index 630934cab..bb7a0287a 100644
--- a/yuthon_will_task/models/yuthon_will_task.py
+++ b/yuthon_will_task/models/yuthon_will_task.py
@@ -49,8 +49,8 @@ class YuthonWillTask(models.Model):
         hour = (now.hour + 1) % 24
         return str(hour)
 
-    request_hour_from = fields.Selection(time_list, string='开始时间', default=_default_request_hour_from)
-    request_hour_to = fields.Selection(time_list, string='结束时间', default=_default_request_hour_to)
+    request_hour_from = fields.Selection(time_list, string='开始时间')
+    request_hour_to = fields.Selection(time_list, string='结束时间')
     priority = fields.Selection([('important', '重要不紧急'), ('urgent', '紧急不重要'), ('very_urgent', '重要且紧急')], string='优先级')
     code = fields.Char(string="任务编号", default=lambda self: self.env['ir.sequence'].next_by_code('task_code'))
     user_id = fields.Many2one('res.users', string="创建人", default=lambda self: self.env.user)