Download the WakaTime.py file from GitHub.
Inside Blender, go to
Add-ons, then click the
Install from File...button.
Check the box to enable the plugin, then click the
Save User Settingsbutton.
Spacekey to open the floating menu and type
WakaTime API Key
Enter your API key then click
Use Blender like you normally do and your time will be tracked for you automatically.
Visit https://wakatime.com/dashboard to see your logged time.