How to fix RecursionError: maximum recursion depth exceeded in instancecheck

There is a part of the code

class Creat_Timetable():
    def __init__(self):

        self.all_hours_start = [8,9,10,11,12,13,14]
        self.all_minutes_start = [28,23,28,28,23,28,23]

        Creat_Timetable.CreatWin(self)

    def CreatWin(self): # Создаём главное окно
        global main_win, time

        main_win = Tk ()
        main_win.resizable ( width=False,height=False )
        main_win.geometry ( "700x400")
        main_win.title ( "Timetable" )

        time = Label ( text="" )
        time.place ( x=323,y=0)

        Monday = Label (main_win, text="понедельник" )
        Tuesday = Label (main_win, text="вторник" )
        Wednesday = Label (main_win, text="среда" )
        Thursday = Label (main_win, text="четверг" )
        Friday = Label (main_win, text="пятница" )

        Monday.place ( x=10,y=50 )
        Tuesday.place ( x=190,y=50 )
        Wednesday.place ( x=340,y=50 )
        Thursday.place ( x=450,y=50 )
        Friday.place ( x=580,y=50 )

        Creat_Timetable.CheckTime ( self)
        main_win.mainloop ()
    def CheckTime(self):  # Проверка времяни для сбора информации
        now = datetime.now ()

        if now.minute < 10:
            time_n = str ( now.hour )+":0"+str ( now.minute )
        else:
            time_n = str(now.hour) + ":" + str(now.minute)

        time.configure(text=str(time_n))

        for i in range(0,len(self.all_hours_start)):
            if self.all_minutes_start[i] < 10:
                time_l = str (self.all_hours_start[i] )+":0" + str(self.all_minutes_start[i])
            else:
                time_l = str(self.all_hours_start[i]) + ":" + str(self.all_minutes_start[i])

            if time_n == time_l: # Если время нужное
                print ( app2.schoolParse () )  # Выводим что спарсила программа
                del self.all_hours_start[i], self.all_minutes_start[i] # Удаляем не нужное время
        main_win.after(100000,Creat_Timetable.CheckTime(self))

Returns the error

Traceback (most recent call last): File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 65, in Creat_Timetable() File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 11, in init Creat_Timetable.CreatWin(self) File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 36, in CreatWin Creat_Timetable.CheckTime ( self) File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 62, in CheckTime main_win.after(100000,Creat_Timetable.CheckTime(self)) File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 62, in CheckTime main_win.after(100000,Creat_Timetable.CheckTime(self)) File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 62, in CheckTime main_win.after(100000,Creat_Timetable.CheckTime(self)) [Previous line repeated 988 more times] File "/Users/lrd/PycharmProjects/schedule_creation/venv/include/main.py", line 50, in CheckTime time.configure(text=str(time_n)) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/init.py", line 1485, in configure return self._configure('configure', cnf, kw) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/init.py", line 1469, in _configure cnf = _cnfmerge((cnf, kw)) File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/init.py", line 100, in _cnfmerge elif isinstance(cnfs, (type(None), str)): RecursionError: maximum recursion depth exceeded in instancecheck