diff --git a/spug_api/apps/schedule/scheduler.py b/spug_api/apps/schedule/scheduler.py
index c0ce920..1b5ca71 100644
--- a/spug_api/apps/schedule/scheduler.py
+++ b/spug_api/apps/schedule/scheduler.py
@@ -27,6 +27,7 @@ import json
 class Scheduler:
     timezone = settings.TIME_ZONE
     week_map = {
+        '-': '-',
         '*': '*',
         '7': '6',
         '0': '6',
@@ -44,6 +45,10 @@ class Scheduler:
             self._handle_event,
             EVENT_SCHEDULER_SHUTDOWN | EVENT_JOB_ERROR | EVENT_JOB_MAX_INSTANCES | EVENT_JOB_EXECUTED)
 
+    @classmethod
+    def covert_week(cls, week_str):
+        return ''.join(map(lambda x: cls.week_map[x], week_str))
+
     @classmethod
     def parse_trigger(cls, trigger, trigger_args):
         if trigger == 'interval':
@@ -53,7 +58,7 @@ class Scheduler:
         elif trigger == 'cron':
             args = json.loads(trigger_args) if not isinstance(trigger_args, dict) else trigger_args
             minute, hour, day, month, week = args['rule'].split()
-            week = cls.week_map[week]
+            week = cls.covert_week(week)
             return CronTrigger(minute=minute, hour=hour, day=day, month=month, day_of_week=week,
                                start_date=args['start'], end_date=args['stop'])
         else:
diff --git a/spug_api/apps/schedule/views.py b/spug_api/apps/schedule/views.py
index 022dbfa..e46c0d1 100644
--- a/spug_api/apps/schedule/views.py
+++ b/spug_api/apps/schedule/views.py
@@ -150,7 +150,7 @@ def next_run_time(request):
     if error is None:
         try:
             minute, hour, day, month, week = form.rule.split()
-            week = Scheduler.week_map[week]
+            week = Scheduler.covert_week(week)
             trigger = CronTrigger(minute=minute, hour=hour, day=day, month=month, day_of_week=week,
                                   start_date=form.start, end_date=form.stop)
         except (ValueError, KeyError):