How Can I Efficiently Track and Manage Working Hours Using an Hour Calculator?

I'm looking for the best ways to track and manage my working hours Calculette Mauricette. I've heard about hour calculators but I'm not sure which one would be the most efficient and user-friendly.

Can anyone recommend a good hour calculator tool that they have used? Additionally, any tips on how to integrate it into daily work routines for optimal time management would be greatly appreciated.