title: Python how to get current time as an integer
body: <p>This is my code that I tried to use but it doesn't work since it's a string</p>
  
  <pre><code>from datetime import datetime
  now = datetime.now()
  current_time = now.strftime("%H:%M")
  print("time=", current_time)
  wake_up=0
  x=current_time - wake_up - 0.40
  wake_up = float(input("when are you gonna wake up"))
  print(x)
  </code></pre>
  
  <p>I am trying to make a calculator where as it prints the current time. (for example 23:00) and then the input asks what time are you going to wake up and you write (for example 08:30) and the output should be "You will get 09:30 hours and minutes of sleep" or preferably "You will get 9 hours and 30 minutes of sleep"</p>
  
  <p>I tried to do this but it is a string and cannot be calculated and I tried to find an integer version of the now.strftime module. Can someone help me find out how to do this?</p>