Here's a direct link to Nokia's theme download page:

You're looking for some solid features and a clock theme for the Nokia 3110c. Here are a few:

https://www.nokia.com/phones/en/support/software-update-and-downloads/themes

Nokia 3110c Clock Themes — 1 Link

Here's a direct link to Nokia's theme download page:

You're looking for some solid features and a clock theme for the Nokia 3110c. Here are a few:

https://www.nokia.com/phones/en/support/software-update-and-downloads/themes