sudo npm install nwtimers -g
This is a cross platform eggtimer applet. It can keep track of a large amount of timers persistently with an elegant display. It continues to do it's job even if you reboot.
npm page: https://www.npmjs.com/package/nwtimers git page: https://www.github.com/x0x7/nwtimers
Other projects: https://www.npmjs.com/~x0x7