title: How long does Colab's Usage limit lasts?
body: <p>This message keeps popping out after I used two GPUs simultaneously for two notebooks from the same account for about half an hour (Colab wasn't running for 12 hours):
  <a href="https://preview.redd.it/myd7enirwn451.png?width=631&amp;format=png&amp;auto=webp&amp;s=e35aefb597ddce0f7d2cca2ea050ca34510465aa" rel="nofollow noreferrer">Photo of pop-out message</a></p>
  <blockquote>
  <p>You cannot currently connect to a GPU due to usage limits in Colab.</p>
  </blockquote>
  <p>It has been about two hours since I last used colab, but the message still pops up. It would be really great if I know for how long does this lasts. I think it could be 12 hours but would want to know from someone who has experienced this. In my case, the GPUs are available, but due to recent excess computing and running one cell for long, I have reached my usage limit for gpus. However, I want to know that after how much waiting will colab let me use its GPUs again.</p>
  <p>Update: It has been more than 2 days and colab still doesn't allow me to use GPUs. The usage limit message still pops out.</p>