[Django]-Django development server keeps logging out

I believe that only cookies age only is not enough and 360 only mean available for 360 second:

#Cookie name. this can be whatever you want
SESSION_COOKIE_NAME='sessionid'  # use the sessionid in your views code
#the module to store sessions data
SESSION_ENGINE='django.contrib.sessions.backends.db'    
#age of cookie in seconds (default: 2 weeks)
SESSION_COOKIE_AGE= 24*60*60*7 # the number of seconds for only 7 for example
#whether a user's session cookie expires when the web browser is closed
SESSION_EXPIRE_AT_BROWSER_CLOSE=False
#whether the session cookie should be secure (https:// only)
SESSION_COOKIE_SECURE=False