This timer is interactive and contains multiple options. You can countdown time based on a point in the future or set amount of seconds, minutes, and hours passed. When time runs out, your computer makes a phonetic noise, shouts a reminder, or issues a command! You can choose the message. You can can also use the -i option in order to run it like a stopwatch (indefinite).
git clone https://github.com/LEDparty/voice-timer
cd voice-timer
sudo install timer.sh /usr/local/bin
Run the script without options to see how to use all its features:
./timer.sh