gkrellmitime software package provides Internet time plugin for gkrellm, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gkrellmitime
gkrellmitime is installed in your system.
Make ensure the gkrellmitime package were installed using the commands given below,
$ sudo dpkg-query -l | grep gkrellmitime *
You will get with gkrellmitime package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | X Window System software |
| Package | gkrellmitime |
| Version | 1.0.1-5 |
| Description | Internet time plugin for gkrellm |
| Sub Section | X234 |