from threading import Timer
import time, datetime

mm = 18

t = datetime.datetime.today()
future = datetime.datetime(t.year,t.month,t.day,23,mm)
diff = future - t
delta = diff.total_seconds()

print("waiting until 11:%i PM, which is %i seconds from now." % (mm,delta))

    
    
    
 
def func(a, b):
    print("Called function")
    return a * b
 
# Schedule a timer for 5 seconds
# We pass arguments 3 and 4
t = Timer(delta, func, [3, 4])
 
start_time = time.time()
 
# Start the timer
t.start()
 
end_time = time.time()
 
if end_time - start_time < 5.0:
    print("Timer will wait for sometime before calling the function")
else:
    print("%i seconds already passed. Timer finished calling func()" % mm)