Great question, we want to make sure you are able to get your applications working on your device, you can review the applications by following the steps on this link:https://www.verizonwireless.com/support/knowledge-base-219203/
Once you are here you can enable or disable the applications you desire.
The app is not listed. So, please provide a specific answer to the specific question:
"Where can the time/weather/batter app be enabled, and where is the widget found, to be added to the home screen, specifically?" And, if it is not found there, how to reinstall/enable/create it?
I'm sorry to hear your weather app isn't listed on your device any longer daddmac. We can help with this problem. What device do you have? Is the software up to date on your phone? Did you make any changes to your device recently that would have deleted the application?