[转]Js获取当前日期时间及其它操作

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;}

 

若要显示:当前日期加时间(如:2009-06-12 12:00)

function CurentTime() { var now = new Date(); var year = now.getFullYear(); //年 var month = now.getMonth() + 1; //月 var day = now.getDate(); //日 var hh = now.getHours(); //时 var mm = now.getMinutes(); //分 var clock = year + "-"; if(month < 10) clock += "0"; clock += month + "-"; if(day < 10) clock += "0"; clock += day + " "; if(hh < 10) clock += "0"; clock += hh + ":"; if (mm < 10) clock += \'0\'; clock += mm; return(clock); }