pkd123

Hi, Today is 06/18/2019, and I’m looking to travel out of the country on 12/08/2019 and then return back to the USA on 01/22/2020. My current H1b with my employer would expire on 06/14/2020. I do already have H1b visa stamping until my visa expiration date. As my H1b expires in less than 6 months from my return date to the country. Is it safe to travel? Is there any such rule for an H1b candidate that they are not allowed to travel if their visa expires in less than 6 months? Also, with my current travel plan, when is a good time for my employer to file my H1b extension?