第一个把时间转换为整数,这样你就能去计算了,第二个把数字转换成时间,你可以用来显示了
function getIntFromTime(time) {
time = time.split(':')
return parseInt(time[0], 10) * 60 * 60 + parseInt(time[1], 10) * 60 + parseInt(time[2], 10)
}
function getTimeFromInt(value) {
var h = Math.floor(value / 60 / 60)
var m = value % (60*60)
var s = value % (60)
if (h.toString().length <2) h = '0' + h.toString()
if (m.toString().length <2) m = '0' + m.toString()
if(s.toString().length <2) s = '0' + s.toString()
return h + ':' + m + ':' + s
}
//dateTimeStamp是一个时间毫秒,注意时间戳是秒的形式,在这个毫秒的基础上除以1000,就是十位数的时间戳。13位数的都是时间毫秒。function timeago(dateTimeStamp){
var minute = 1000 * 60 //把分,时,天,周,半个月,一个月用毫秒表示
var hour = minute * 60
var day = hour * 24
var week = day * 7
var halfamonth = day * 15
var month = day * 30
var now = new Date().getTime() //获取当前时间毫秒
console.log(now)
var diffValue = now - dateTimeStamp//时间差
if(diffValue <0){
return
}
var minC = diffValue/minute //计算时间差的分,时,天,周,月
var hourC = diffValue/hour
var dayC = diffValue/day
var weekC = diffValue/week
var monthC = diffValue/month
if(monthC >= 1 &&monthC <= 3){
result = " " + parseInt(monthC) + "月前"
}else if(weekC >= 1 &&weekC <= 3){
result = " " + parseInt(weekC) + "周前"
}else if(dayC >= 1 &&dayC <= 6){
result = " " + parseInt(dayC) + "天前"
}else if(hourC >= 1 &&hourC <= 23){
result = " " + parseInt(hourC) + "小时前"
}else if(minC >= 1 &&minC <= 59){
result =" " + parseInt(minC) + "分钟前"
}else if(diffValue >= 0 &&diffValue <= minute){
result = "刚刚"
}else {
var datetime = new Date()
datetime.setTime(dateTimeStamp)
var Nyear = datetime.getFullYear()
var Nmonth = datetime.getMonth() + 1 <10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1
var Ndate = datetime.getDate() <10 ? "0" + datetime.getDate() : datetime.getDate()
var Nhour = datetime.getHours() <10 ? "0" + datetime.getHours() : datetime.getHours()
var Nminute = datetime.getMinutes() <10 ? "0" + datetime.getMinutes() : datetime.getMinutes()
var Nsecond = datetime.getSeconds() <10 ? "0" + datetime.getSeconds() : datetime.getSeconds()
result = Nyear + "-" + Nmonth + "-" + Ndate
}
return result
}
按照你的要求编写的计算时间差的Javascript程序如下(注意 date是随意写的正确的日期字符串,只是为了函数Date.parse()的需要)
<script type=text/javascript>var date="2018/07/17"
var time1 = Date.parse(date+" "+"2:32:39")
var time2 = Date.parse(date+" "+"14:12:09")
var time3=time2-time1
var hour=Math.floor(time3/1000/60/60)
var minute=Math.floor(time3/1000/60-hour*60)
var second=time3/1000-hour*60*60-minute*60
alert("时间差为"+hour+"小时"+minute+"分"+second+"秒")
</script>
运行结果
时间差为11小时39分30秒