from datetime import datetime

import time, math

for x in range(0,3):

  print(datetime.now())

  time.sleep(1)

def sectimer(seconds):

  secperday = 60 * 60 * 24

  days = math.floor(seconds / secperday)

  seconds = seconds - days * secperday

  secperhour = 60 * 60

  hours = math.floor(seconds / secperhour)

  seconds = seconds - hours * secperhour

  secpermin = 60

  minutes = math.floor(seconds / secpermin)

  seconds = seconds - minutes * secpermin

  

  strtime = ""

  if days < 10: strtime += "0"

  strtime += str(days) + ":"

  if hours < 10: strtime += "0"

  strtime += str(hours) + ":"

  if minutes < 10: strtime += "0"

  strtime += str(minutes) + ":"

  if seconds < 10: strtime += "0"

  strtime += str(seconds)

  

  return strtime

  

start = datetime.now()

counter = 0

for x in range(0, 30):

  print(sectimer(counter))

  time.sleep(1)

  counter += 1

end = datetime.now()

print (end - start)