title: pygame.time.set_timer() it works incorrectly
body: <p>Good day! Judging by the documentation, the line pygame.time.set_timer(pygame.USEREVENT, 1000) sets a timer for 1s, after which the USEREVENT event will be created.
  I have this line in an infinite loop, updated every ~33ms.
  Then, as far as I understand, USEREVENT should not be received at all, because every 33ms iteration I update the timer by 1000ms.</p>
  <pre><code>import pygame
  pygame.init()
   
  sc = pygame.display.set_mode((500, 604))
  clock = pygame.time.Clock()
  while True:
      pygame.time.set_timer(pygame.USEREVENT, 1000)
      for event in pygame.event.get():
          if event.type == pygame.QUIT:
              exit()
          elif event.type == pygame.USEREVENT:
              print('event')
      clock.tick(30)
  </code></pre>
  <p>But in practice, something else happens: sometimes an event is not thrown for several seconds, sometimes several pieces are thrown: one event every one or two iterations.
  Maybe I don't understand something about how pygame.time.set_timer() works?</p>
  <p><em>The presented code does not make sense, it only illustrates the problem that I encountered</em></p>
  <p><em>I write in PyCharm</em></p>