timedial
dial it in.
moment.js is great for just about everything except unix timestamps. timestamps are great for leveldb ranges.
usage
var dial = require('timedial')
var moment = Date.now()
var future = dial.forward(moment, 4, 'hours')
methods
dial#forward(timestamp, factor, unit)
dial#back(timestamp, factor, unit)
dial#readable(timestamp)
install
npm install timedial