Test your time critical app by overriding the native Javascript Date function
npm install timemachinetimemachine 
===========
Test your time-dependent app by monkey patching the Date function and overriding your system time. Timemachine is compatible with global namespaces, RequireJS, CommonJS and NodeJS.
sh
$ bower install timemachine
`$3
sh
$ npm install timemachine
`Usage
$3
js
timemachine.config({
dateString: 'December 25, 1991 13:12:59'
});console.log(new Date()); // December 25, 1991 13:12:59
`Parameter | Description | Default
--- | --- | ---
| Date you want set as a string | Thu, 01 Jan 1970 00:00:00 GMT
| Date you want set as a timestamp | 0
| Time offset in milliseconds | 0
| Whether the system clock should continue ticking | false
| Whether the system time should be kept | false$3
js
timemachine.reset();
console.log(new Date()); // Your real system time
``