'use strict'; var floor = require('./floor'); var modulo = require('./modulo'); var timeConstants = require('../helpers/timeConstants'); var msPerHour = timeConstants.msPerHour; var HoursPerDay = timeConstants.HoursPerDay; // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.10 module.exports = function HourFromTime(t) { return modulo(floor(t / msPerHour), HoursPerDay); };