To install on OS X

To install on Windows

Global hotkeys

Use Ctrl + . to increase time by 5 minutes

Use Ctrl + , to increase time by 1 minute

Use Shift + Ctrl + . to decrease time by 5 minutes

Use Shift + Ctrl + , to decrease time by 1 minute

Use Ctrl + P to pause or play

Hotkeys work globally. As in, they will work even if you're in a game.

Editing

If you want to edit the text or styling on Windows, download nw.js from nwjs.io, download the source, and edit countdown.html. Run it by double-clicking nw.exe.

Directly edit countdown.html to make changes on OS X.

The MIT License (MIT)

Copyright (c) 2016 skhmt

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.