kc-timespan/README.md

[js] Returns an extract of unix time that changes each S seconds.

# Timespan
[js] Returns an extract of unix time that changes each S seconds.

### Install
```
npm install kc-timespan
```

### Use
```js
var timeSpan = require('kc-timespan');
var ts  = timeSpan(5);
console.log(ts);
```