本文为大家分享了Js获取当前日期时间及格式化操作,具体内容如下
var myDate = new Date();
myDate.getYear();
//获取当前年份(2位)myDate.getFullYear();
//获取完整的年份(4位,1970-????)myDate.getMonth();
//获取当前月份(0-11,0代表1月)myDate.getDate();
//获取当前日(1-31)myDate.getDay();
//获取当前星期X(0-6,0代表星期天)myDate.getTime();
//获取当前时间(从1970.1.1开始的毫秒数)myDate.getHours();
//获取当前小时数(0-23)myDate.getMinutes();
//获取当前分钟数(0-59)myDate.getSeconds();
//获取当前秒数(0-59)myDate.getMilliseconds();
//获取当前毫秒数(0-999)myDate.toLocaleDateString();
//获取当前日期var mytime=myDate.toLocaleTimeString();
//获取当前时间myDate.toLocaleString( );
//获取日期与时间
日期时间脚本库方法列表
Date.prototype.isLeapYear 判断闰年
Date.prototype.Format 日期格式化
Date.prototype.DateAdd 日期计算
Date.prototype.DateDiff 比较日期差
Date.prototype.toString 日期转字符串
Date.prototype.toArray 日期分割为数组
Date.prototype.DatePart 取日期的部分信息
Date.prototype.MaxDayOfDate 取日期所在月的最大天数
Date.prototype.WeekNumOfYear 判断日期所在年的第几周
StringToDate 字符串转日期型
IsValidDate 验证日期有效性
CheckDateTime 完整日期时间检查
daysBetween 日期天数差
js代码:
//--------------------------------------------------- // 判断闰年 //--------------------------------------------------- Date.prototype.isLeapYear = function() {
return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));
}
//--------------------------------------------------- // 日期格式化 // 格式 YYYY/yyyy/YY/yy 表示年份 // MM/M 月份 // W/w 星期 // dd/DD/d/D 日期 // hh/HH/h/H 时间 // mm/m 分钟 // ss/SS/s/S 秒 //--------------------------------------------------- Date.prototype.Format = function(formatStr) {
var str = formatStr;
var Week = ['日','一','二','三','四','五','六'];
str=str.replace(/yyyy|YYYY/,this.getFullYear());
str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));
str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + this.getMonth());
str=str.replace(/M/g,this.getMonth());
str=str.replace(/w|W/g,Week[this.getDay()]);
str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());
str=str.replace(/d|D/g,this.getDate());
str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());
str=str.replace(/h|H/g,this.getHours());
str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());
str=str.replace(/m/g,this.getMinutes());
str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());
str=str.replace(/s|S/g,this.getSeconds());
return str;
}
//+--------------------------------------------------- //| 求两个时间的天数差 日期格式为 YYYY-MM-dd //+--------------------------------------------------- function daysBetween(DateOne,DateTwo) {
var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'));
var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1);
var OneYear = DateOne.substring(0,DateOne.indexOf ('-'));
var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'));
var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1);
var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'));
var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000);
return Math.abs(cha);
}
//+--------------------------------------------------- //| 日期计算 //+--------------------------------------------------- Date.prototype.DateAdd = function(strInterval, Number) {
var dtTmp = this;
switch (strInterval) {
case 's' :return new Date(Date.parse(dtTmp) + (1000 * Number));
case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number));
case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number));
case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number));
case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));
case 'q' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
case 'm' :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
case 'y' :return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());
}
}
//+--------------------------------------------------- //| 比较日期差 dtEnd 格式为日期型或者有效日期格式字符串 //+--------------------------------------------------- Date.prototype.DateDiff = function(strInterval, dtEnd) {
var dtStart = this;
if (typeof dtEnd == 'string' )//如果是字符串转换为日期型 {
dtEnd = StringToDate(dtEnd);
}
switch (strInterval) {
case 's' :return parseInt((dtEnd - dtStart) / 1000);
case 'n' :return parseInt((dtEnd - dtStart) / 60000);
case 'h' :return parseInt((dtEnd - dtStart) / 3600000);
case 'd' :return parseInt((dtEnd - dtStart) / 86400000);
case 'w' :return parseInt((dtEnd - dtStart) / (86400000 * 7));
case 'm' :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);
case 'y' :return dtEnd.getFullYear() - dtStart.getFullYear();
}
}
//+--------------------------------------------------- //| 日期输出字符串,重载了系统的toString方法 //+--------------------------------------------------- Date.prototype.toString = function(showWeek) {
var myDate= this;
var str = myDate.toLocaleDateString();
if (showWeek) {
var Week = ['日','一','二','三','四','五','六'];
str += ' 星期' + Week[myDate.getDay()];
}
return str;
}
//+--------------------------------------------------- //| 日期合法性验证 //| 格式为:YYYY-MM-DD或YYYY/MM/DD //+--------------------------------------------------- function IsValidDate(DateStr) {
var sDate=DateStr.replace(/(^s+|s+$)/g,'');
//去两边空格;
if(sDate=='') return true;
//如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为'' //数据库中,合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式 var s = sDate.replace(/[d]{
4,4 }
[-/]{
1 }
[d]{
1,2 }
[-/]{
1 }
[d]{
1,2 }
/g,'');
if (s=='') //说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D {
var t=new Date(sDate.replace(/-/g,'/'));
var ar = sDate.split(/[-/:]/);
if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate()) {
//alert('错误的日期格式!格式为:YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
return false;
}
}
else {
//alert('错误的日期格式!格式为:YYYY-MM-DD或YYYY/MM/DD。注意闰年。');
return false;
}
return true;
}
//+--------------------------------------------------- //| 日期时间检查 //| 格式为:YYYY-MM-DD HH:MM:SS //+--------------------------------------------------- function CheckDateTime(str) {
var reg = /^(d+)-(d{
1,2 }
)-(d{
1,2 }
) (d{
1,2 }
):(d{
1,2 }
):(d{
1,2 }
)$/;
var r = str.match(reg);
if(r==null)return false;
r[2]=r[2]-1;
var d= new Date(r[1],r[2],r[3],r[4],r[5],r[6]);
if(d.getFullYear()!=r[1])return false;
if(d.getMonth()!=r[2])return false;
if(d.getDate()!=r[3])return false;
if(d.getHours()!=r[4])return false;
if(d.getMinutes()!=r[5])return false;
if(d.getSeconds()!=r[6])return false;
return true;
}
//+--------------------------------------------------- //| 把日期分割成数组 //+--------------------------------------------------- Date.prototype.toArray = function() {
var myDate = this;
var myArray = Array();
myArray[0] = myDate.getFullYear();
myArray[1] = myDate.getMonth();
myArray[2] = myDate.getDate();
myArray[3] = myDate.getHours();
myArray[4] = myDate.getMinutes();
myArray[5] = myDate.getSeconds();
return myArray;
}
//+--------------------------------------------------- //| 取得日期数据信息 //| 参数 interval 表示数据类型 //| y 年 m月 d日 w星期 ww周 h时 n分 s秒 //+--------------------------------------------------- Date.prototype.DatePart = function(interval) {
var myDate = this;
var partStr='';
var Week = ['日','一','二','三','四','五','六'];
switch (interval) {
case 'y' :partStr = myDate.getFullYear();
break;
case 'm' :partStr = myDate.getMonth()+1;
break;
case 'd' :partStr = myDate.getDate();
break;
case 'w' :partStr = Week[myDate.getDay()];
break;
case 'ww' :partStr = myDate.WeekNumOfYear();
break;
case 'h' :partStr = myDate.getHours();
break;
case 'n' :partStr = myDate.getMinutes();
break;
case 's' :partStr = myDate.getSeconds();
break;
}
return partStr;
}
//+--------------------------------------------------- //| 取得当前日期所在月的最大天数 //+--------------------------------------------------- Date.prototype.MaxDayOfDate = function() {
var myDate = this;
var ary = myDate.toArray();
var date1 = (new Date(ary[0],ary[1]+1,1));
var date2 = date1.dateAdd(1,'m',1);
var result = dateDiff(date1.Format('yyyy-MM-dd'),date2.Format('yyyy-MM-dd'));
return result;
}
//+--------------------------------------------------- //| 取得当前日期所在周是一年中的第几周 //+--------------------------------------------------- Date.prototype.WeekNumOfYear = function() {
var myDate = this;
var ary = myDate.toArray();
var year = ary[0];
var month = ary[1]+1;
var day = ary[2];
document.write('< script language=VBScript> n');
document.write('myDate = Datue(''+month+'-'+day+'-'+year+'') n');
document.write('result = DatePart('ww', myDate) n');
document.write(' n');
return result;
}
//+--------------------------------------------------- //| 字符串转成日期类型 //| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd //+--------------------------------------------------- function StringToDate(DateStr) {
var converted = Date.parse(DateStr);
var myDate = new Date(converted);
if (isNaN(myDate)) {
//var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';
var arys= DateStr.split('-');
myDate = new Date(arys[0],--arys[1],arys[2]);
}
return myDate;
}
如果要实现这样的时钟:
2012年12月03日 17:21:16 星期一
//本地时钟function clockon() {
var now = new Date();
var year = now.getFullYear();
//getFullYear getYear var month = now.getMonth();
var date = now.getDate();
var day = now.getDay();
var hour = now.getHours();
var minu = now.getMinutes();
var sec = now.getSeconds();
var week;
month = month + 1;
if (month < 10) month = "0" + month;
if (date < 10) date = "0" + date;
if (hour < 10) hour = "0" + hour;
if (minu < 10) minu = "0" + minu;
if (sec < 10) sec = "0" + sec;
var arr_week = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
week = arr_week[day];
var time = "";
time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu + ":" + sec + " " + week;
$("#bgclock").html(time);
var timer = setTimeout("clockon()", 200);
}
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。