title: Run bash script between time variables
body: <p>I need to run some task at a dynamic time presented in the <strong>variable</strong> (which value is in <strong>HH.mm.ss</strong> format) <strong>+ 2 minutes</strong> from its value and less than <strong>5 minutes</strong>. Then I could add this job to crontab to schedule it for every minute and I hope that the script will run when the time variable syncs the current time + 2 (or a bit more) minutes (but no more than 5 minutes).</p>
  
  <p>Thank you.</p>
  
  <p>Update:
  Thanks to l0b0, all that is left is to find a way to substract 2 minutes from <strong>HH.mm.ss</strong> variable to get for example 05:28:00 after substraction from var 05:30:00. I think it must be somehow simple. Thanks for help.</p>