diff --git a/everyday_wechat/main.py b/everyday_wechat/main.py
index fc5be98..b2beeb5 100644
--- a/everyday_wechat/main.py
+++ b/everyday_wechat/main.py
@@ -11,6 +11,7 @@
 import random
 # from apscheduler.schedulers.blocking import BlockingScheduler
 from apscheduler.schedulers.background import BackgroundScheduler
+from datetime import datetime as dt, timedelta
 import itchat
 from itchat.content import (
     TEXT
@@ -110,6 +111,18 @@ def init_data():
     if alarm_dict:
         init_alarm(alarm_dict)  # 初始化定时任务
 
+def set_daily_alarm(alarm_dict):
+    """
+    设置每天随机发送消息时间
+    :param alarm_dict: 定时相关内容
+    """
+    sched = BackgroundScheduler()
+    for key, value in alarm_dict.items():
+        start = dt.strptime(value['start'], '%H:%M').replace(year=dt.now().year, month=dt.now().month, day=dt.now().day)
+        end = dt.strptime(value['end'], '%H:%M').replace(year=dt.now().year, month=dt.now().month, day=dt.now().day)
+        run_time = start + timedelta(seconds=random.randint(0, int((end - start).total_seconds())),)
+        sched.add_job(send_alarm_msg, 'date', [key], run_date = run_time, id=key, misfire_grace_time=600)
+    sched.start()
 
 def init_alarm(alarm_dict):
     """
@@ -118,9 +131,8 @@ def init_alarm(alarm_dict):
     """
     # 定时任务
     scheduler = BackgroundScheduler()
-    for key, value in alarm_dict.items():
-        scheduler.add_job(send_alarm_msg, 'cron', [key], hour=value['hour'],
-                          minute=value['minute'], id=key, misfire_grace_time=600)
+    set_daily_alarm(alarm_dict)
+    scheduler.add_job(set_daily_alarm, 'cron', [alarm_dict], hour = 0, id='set_daily_alarm')
     scheduler.start()
     print('已开启定时发送提醒功能...')
     # print(scheduler.get_jobs())
diff --git a/everyday_wechat/utils/itchat_helper.py b/everyday_wechat/utils/itchat_helper.py
index b67d969..3293a97 100644
--- a/everyday_wechat/utils/itchat_helper.py
+++ b/everyday_wechat/utils/itchat_helper.py
@@ -114,12 +114,13 @@ def init_wechat_config():
                 ats = [ats]
             if isinstance(ats, list):
                 for at in ats:
-                    times = TIME_COMPILE.findall(at)
-                    if not times:
+                    at = at.replace('－','-').replace('：',':')
+                    start = at.split('-')[0].strip()
+                    end = at.split('-')[1].strip() if len(at.split('-')) == 2 else start
+                    if not (TIME_COMPILE.findall(start) and TIME_COMPILE.findall(end)):
                         print('时间{}格式出错'.format(at))
                         continue
-                    hour, minute = int(times[0][0]), int(times[0][1])
-                    temp_dict = {'hour': hour, 'minute': minute, 'uuid_list': uuid_list}
+                    temp_dict = {'start': start, 'end': end, 'uuid_list': uuid_list}
                     temp_dict.update(gi)
                     alarm_dict[md5_encode(str(temp_dict))] = temp_dict
         #   end---------------------------定时处理---------------------------end