diff --git a/env.py.example b/env.py.example
index db736ea..219dd7c 100644
--- a/env.py.example
+++ b/env.py.example
@@ -117,8 +117,8 @@ QUERY_JOBS = [
         # 'job_name':  'bj -> sz',  # 任务名称，不填默认会以车站名命名，不可重复
         'account_key': 0,  # 将会使用指定账号下单
         'left_dates': [  # 出发日期 :Array
-            "2019-01-25",
-            "2019-01-26",
+            "2020-01-25",
+            "2020-01-26",
         ],
         'stations': {  # 车站 支持多个车站同时查询  :Dict or :List
             'left': '北京',
diff --git a/py12306/query/job.py b/py12306/query/job.py
index cc1a374..8b91c45 100644
--- a/py12306/query/job.py
+++ b/py12306/query/job.py
@@ -1,5 +1,6 @@
 import sys
 from datetime import timedelta
+from datetime import datetime
 
 from py12306.app import app_available_check
 from py12306.cluster.cluster import Cluster
@@ -66,6 +67,8 @@ class Job:
     INDEX_LEFT_TIME = 8
     INDEX_ARRIVE_TIME = 9
 
+    max_buy_time = 32
+
     def __init__(self, info, query):
         self.cluster = Cluster()
         self.query = query
@@ -136,11 +139,29 @@ class Job:
                 QueryLog.add_log('\n').flush(sep='\t\t', publish=False)
             if Const.IS_TEST: return
 
+    def judge_date_legal(self, date):
+        date_now = datetime.datetime.now()
+        date_query = datetime.datetime.strptime(str(date), "%Y-%m-%d")
+        diff = (date_query - date_now).days
+        if date_now.day == date_query.day:
+            diff = 0
+        if diff < 0:
+            msg = '乘车日期错误，比当前时间还早！！'
+            QueryLog.add_quick_log(msg).flush(publish=False)
+            raise RuntimeError(msg)
+        elif diff > self.max_buy_time:
+            msg = '乘车日期错误，超出一个月预售期！！'
+            QueryLog.add_quick_log(msg).flush(publish=False)
+            raise RuntimeError(msg)
+        else:
+            pass
+
     def query_by_date(self, date):
         """
         通过日期进行查询
         :return:
         """
+        self.judge_date_legal(date)
         from py12306.helpers.cdn import Cdn
         QueryLog.add_log(('\n' if not is_main_thread() else '') + QueryLog.MESSAGE_QUERY_START_BY_DATE.format(date,
                                                                                                               self.left_station,