/***
* 获得当前时间
*/
function getCurrentDate(){
return new Date();
};
//今年以来的起止时间段
function getThisYear(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=this.getCurrentDate();
var stop = currentDate.getYear()+"-"+(currentDate.getMonth()+1)+"-"+currentDate.getDate();
var start = currentDate.getYear()+"-"+"01-01";
//添加年初时间
startStop.push(start);//本周起始时间
//添加当前时间
startStop.push(stop);//本周终止时间
//返回
return startStop;
}
//获得昨日起止时间
function getYesterdayDate(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=this.getCurrentDate();
//一天的毫秒数
var millisecond=1000*60*60*24;
//昨日时间
yesterday = new Date(currentDate.getTime()-millisecond);
currentDate = currentDate.getYear()+"-"+(currentDate.getMonth()+1)+"-"+currentDate.getDate();
yesterday = yesterday.getYear()+"-"+(yesterday.getMonth()+1)+"-"+yesterday.getDate();
//添加本周时间
startStop.push(yesterday);//本周起始时间
//添加本周最后一天时间
startStop.push(currentDate);//本周终止时间
//返回
return startStop;
}
/***
* 获得本周起止时间
*/
function getCurrentWeek(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=this.getCurrentDate();
//返回date是一周中的某一天
var week=currentDate.getDay();
//返回date是一个月中的某一天
var month=currentDate.getDate();
//一天的毫秒数
var millisecond=1000*60*60*24;
//减去的天数
var minusDay=week!=0?week-1:6;
//alert(minusDay);
//本周 周一
var monday=new Date(currentDate.getTime()-(minusDay*millisecond));
//本周 周日
var sunday=new Date(monday.getTime()+(6*millisecond));
monday = monday.getYear()+"-"+(monday.getMonth()+1)+"-"+monday.getDate();
sunday = sunday.getYear()+"-"+(sunday.getMonth()+1)+"-"+sunday.getDate();
//添加本周时间
startStop.push(monday);//本周起始时间
//添加本周最后一天时间
startStop.push(sunday);//本周终止时间
//返回
return startStop;
};
/***
* 获得本月的起止时间
*/
function getCurrentMonth(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前月份0-11
var currentMonth=currentDate.getMonth();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//求出本月第一天
var firstDay=new Date(currentYear,currentMonth,1);
//当为12月的时候年份需要加1
//月份需要更新为0 也就是下一年的第一个月
if(currentMonth==11){
currentYear++;
currentMonth=0;//就为
}else{
//否则只是月份增加,以便求的下一月的第一天
currentMonth++;
}
//一天的毫秒数
var millisecond=1000*60*60*24;
//下月的第一天
var nextMonthDayOne=new Date(currentYear,currentMonth,1);
//求出上月的最后一天
var lastDay=new Date(nextMonthDayOne.getTime()-millisecond);
firstDay = firstDay.getYear()+"-"+(firstDay.getMonth()+1)+"-"+firstDay.getDate();
lastDay = lastDay.getYear()+"-"+(lastDay.getMonth()+1)+"-"+lastDay.getDate();
//添加至数组中返回
startStop.push(firstDay);
startStop.push(lastDay);
//返回
return startStop;
};
/**
* 得到本季度开始的月份
* @param month 需要计算的月份
***/
function getQuarterSeasonStartMonth(month){
var quarterMonthStart=0;
var spring=0; //春
var summer=3; //夏
var fall=6; //秋
var winter=9;//冬
//月份从0-11
if(month<3){
return spring;
}
if(month<6){
return summer;
}
if(month<9){
return fall;
}
return winter;
};
/**
* 获得该月的天数
* @param year年份
* @param month月份
* */
function getMonthDays(year,month){
//本月第一天 1-31
var relativeDate=new Date(year,month,1);
//获得当前月份0-11
var relativeMonth=relativeDate.getMonth();
//获得当前年份4位年
var relativeYear=relativeDate.getFullYear();
//当为12月的时候年份需要加1
//月份需要更新为0 也就是下一年的第一个月
if(relativeMonth==11){
relativeYear++;
relativeMonth=0;
}else{
//否则只是月份增加,以便求的下一月的第一天
relativeMonth++;
}
//一天的毫秒数
var millisecond=1000*60*60*24;
//下月的第一天
var nextMonthDayOne=new Date(relativeYear,relativeMonth,1);
//返回得到上月的最后一天,也就是本月总天数
return new Date(nextMonthDayOne.getTime()-millisecond).getDate();
};
/**
* 获得本季度的起止日期
*/
function getCurrentSeason(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前月份0-11
var currentMonth=currentDate.getMonth();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//获得本季度开始月份
var quarterSeasonStartMonth=getQuarterSeasonStartMonth(currentMonth);
//获得本季度结束月份
var quarterSeasonEndMonth=quarterSeasonStartMonth+2;
//获得本季度开始的日期
var quarterSeasonStartDate=new Date(currentYear,quarterSeasonStartMonth,1);
//获得本季度结束的日期
var quarterSeasonEndDate=new Date(currentYear,quarterSeasonEndMonth,getMonthDays(currentYear, quarterSeasonEndMonth));
quarterSeasonStartDate = quarterSeasonStartDate.getYear()+"-"+(quarterSeasonStartDate.getMonth()+1)+"-"+quarterSeasonStartDate.getDate();
quarterSeasonEndDate = quarterSeasonEndDate.getYear()+"-"+(quarterSeasonEndDate.getMonth()+1)+"-"+quarterSeasonEndDate.getDate();
//加入数组返回
startStop.push(quarterSeasonStartDate);
startStop.push(quarterSeasonEndDate);
//返回
return startStop;
};
/***
* 得到本年的起止日期
*
*/
function getCurrentYear(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//本年第一天
var currentYearFirstDate=new Date(currentYear,0,1);
//本年最后一天
var currentYearLastDate=new Date(currentYear,11,31);
//添加至数组
startStop.push(currentYearFirstDate);
startStop.push(currentYearLastDate);
//返回
return startStop;
};
/**
* 返回上一个月的第一天Date类型
* @param year 年
* @param month 月
**/
function getPriorMonthFirstDay(year,month){
//年份为0代表,是本年的第一月,所以不能减
if(month==0){
month=11;//月份为上年的最后月份
year--;//年份减1
return new Date(year,month,1);
}
//否则,只减去月份
month--;
return new Date(year,month,1);;
};
/**
* 获得上一月的起止日期
* ***/
function getPreviousMonth(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前月份0-11
var currentMonth=currentDate.getMonth();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//获得上一个月的第一天
var priorMonthFirstDay=getPriorMonthFirstDay(currentYear,currentMonth);
//获得上一月的最后一天
var priorMonthLastDay=new Date(priorMonthFirstDay.getFullYear(),priorMonthFirstDay.getMonth(),getMonthDays(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth()));
//添加至数组
priorMonthFirstDay = priorMonthFirstDay.getYear()+"-"+(priorMonthFirstDay.getMonth()+1)+"-"+priorMonthFirstDay.getDate();
priorMonthLastDay = priorMonthLastDay.getYear()+"-"+(priorMonthLastDay.getMonth()+1)+"-"+priorMonthLastDay.getDate();
startStop.push(priorMonthFirstDay);
startStop.push(priorMonthLastDay);
//返回
return startStop;
};
/**
* 获得上上一月的起止日期
* ***/
function getPreviousPreviousMonth(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得上月月份0-11
var currentMonth=currentDate.getMonth()-1;
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//获得上一个月的第一天
var priorMonthFirstDay=getPriorMonthFirstDay(currentYear,currentMonth);
//获得上一月的最后一天
var priorMonthLastDay=new Date(priorMonthFirstDay.getFullYear(),priorMonthFirstDay.getMonth(),getMonthDays(priorMonthFirstDay.getFullYear(), priorMonthFirstDay.getMonth()));
//添加至数组
priorMonthFirstDay = priorMonthFirstDay.getYear()+"-"+(priorMonthFirstDay.getMonth()+1)+"-"+priorMonthFirstDay.getDate();
priorMonthLastDay = priorMonthLastDay.getYear()+"-"+(priorMonthLastDay.getMonth()+1)+"-"+priorMonthLastDay.getDate();
startStop.push(priorMonthFirstDay);
startStop.push(priorMonthLastDay);
//返回
return startStop;
};
//去年上个月
function getLastYearLastMonth(){
//起止日期数组
var startStop=new Array();
var lastMonth = getPreviousMonth();
var start = lastMonth[0];
var year = start.split("-")[0];
start = (parseInt(year)-1)+"-"+start.split("-")[1]+"-"+start.split("-")[2];
var end = lastMonth[1];
end = (parseInt(year)-1)+"-"+end.split("-")[1]+"-"+end.split("-")[2];
//添加至数组
startStop.push(start);
startStop.push(end);
return startStop;
}
/**
* 获得上一周的起止日期
* **/
function getPreviousWeek(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//返回date是一周中的某一天
var week=currentDate.getDay();
//返回date是一个月中的某一天
var month=currentDate.getDate();
//一天的毫秒数
var millisecond=1000*60*60*24;
//减去的天数
var minusDay=week!=0?week-1:6;
//获得当前周的第一天
var currentWeekDayOne=new Date(currentDate.getTime()-(millisecond*minusDay));
//上周最后一天即本周开始的前一天
var priorWeekLastDay=new Date(currentWeekDayOne.getTime()-millisecond);
//上周的第一天
var priorWeekFirstDay=new Date(priorWeekLastDay.getTime()-(millisecond*6));
priorWeekFirstDay = priorWeekFirstDay.getYear()+"-"+(priorWeekFirstDay.getMonth()+1)+"-"+priorWeekFirstDay.getDate();
priorWeekLastDay = priorWeekLastDay.getYear()+"-"+(priorWeekLastDay.getMonth()+1)+"-"+priorWeekLastDay.getDate();
//添加至数组
startStop.push(priorWeekFirstDay);
startStop.push(priorWeekLastDay);
return startStop;
};
/**
* 获得上上一周的起止日期
* **/
function getPreviousPreviousWeek(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//返回date是一周中的某一天
var week=currentDate.getDay();
//返回date是一个月中的某一天
var month=currentDate.getDate();
//一天的毫秒数
var millisecond=1000*60*60*24;
//减去的天数
var minusDay=week!=0?week-1:6;
var temp = getPreviousWeek()[0]//上周第一天，但是不是date格式
var lastWeekFirstday = Date.parse(temp.replace(/-/g,"/"));
lastWeekFirstday = new Date(lastWeekFirstday);
//上周最后一天即本周开始的前一天
var priorWeekLastDay=new Date(lastWeekFirstday.getTime()-millisecond);
//上周的第一天
var priorWeekFirstDay=new Date(priorWeekLastDay.getTime()-(millisecond*6));
priorWeekFirstDay = priorWeekFirstDay.getYear()+"-"+(priorWeekFirstDay.getMonth()+1)+"-"+priorWeekFirstDay.getDate();
priorWeekLastDay = priorWeekLastDay.getYear()+"-"+(priorWeekLastDay.getMonth()+1)+"-"+priorWeekLastDay.getDate();
//添加至数组
startStop.push(priorWeekFirstDay);
startStop.push(priorWeekLastDay);
return startStop;
};
//去年本周
function getLastYearLastWeek(){
//起止日期数组
var startStop=new Array();
var lastWeek = getPreviousPreviousWeek();
var start = lastWeek[0];
var year = start.split("-")[0];
start = (parseInt(year)-1)+"-"+start.split("-")[1]+"-"+start.split("-")[2];
var end = lastWeek[1];
end = (parseInt(year)-1)+"-"+end.split("-")[1]+"-"+end.split("-")[2];
//添加至数组
startStop.push(start);
startStop.push(end);
return startStop;
}
/**
* 得到上季度的起始日期
* year 这个年应该是运算后得到的当前本季度的年份
* month 这个应该是运算后得到的当前季度的开始月份
* */
function getPriorSeasonFirstDay(year,month){
var quarterMonthStart=0;
var spring=0; //春
var summer=3; //夏
var fall=6; //秋
var winter=9;//冬
//月份从0-11
switch(month){//季度的其实月份
case spring:
//如果是第一季度则应该到去年的冬季
year--;
month=winter;
break;
case summer:
month=spring;
break;
case fall:
month=summer;
break;
case winter:
month=fall;
break;
};
return new Date(year,month,1);
};
/**
* 得到上季度的起止日期
* **/
function getPreviousSeason(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前月份0-11
var currentMonth=currentDate.getMonth();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
//上季度的第一天
var priorSeasonFirstDay=getPriorSeasonFirstDay(currentYear, currentMonth);
//上季度的最后一天
var priorSeasonLastDay=new Date(priorSeasonFirstDay.getFullYear(),priorSeasonFirstDay.getMonth()+2,getMonthDays(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay.getMonth()+2));
//添加至数组
priorSeasonFirstDay = priorSeasonFirstDay.getYear()+"-"+(priorSeasonFirstDay.getMonth()+1)+"-"+priorSeasonFirstDay.getDate();
priorSeasonLastDay = priorSeasonLastDay.getYear()+"-"+(priorSeasonLastDay.getMonth()+1)+"-"+priorSeasonLastDay.getDate();
startStop.push(priorSeasonFirstDay);
startStop.push(priorSeasonLastDay);
return startStop;
};
//去年上个季度
function getLastYearLastSeason(){
//起止日期数组
var startStop=new Array();
var lastSeason = getPreviousSeason();
var start = lastSeason[0];
var year = start.split("-")[0];
start = (parseInt(year)-1)+"-"+start.split("-")[1]+"-"+start.split("-")[2];
var end = lastSeason[1];
end = (parseInt(year)-1)+"-"+end.split("-")[1]+"-"+end.split("-")[2];
//添加至数组
startStop.push(start);
startStop.push(end);
return startStop;
}
/**
* 得到上上季度的起止日期
* **/
function getPreviousPreviousSeason(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得上季度同期月份0-11
var currentMonth=currentDate.getMonth();
var currentYear = "";
if(currentMonth<3){
currentMonth = 12-(3-parseInt(currentMonth))-1;
currentYear = parseInt(currentDate.getFullYear())-1;
}else{
//获得当前年份4位年
currentYear=currentDate.getFullYear();
}
//上上季度的第一天
var priorSeasonFirstDay=getPriorSeasonFirstDay(currentYear, currentMonth);
//上上季度的最后一天
var priorSeasonLastDay=new Date(priorSeasonFirstDay.getFullYear(),priorSeasonFirstDay.getMonth()+2,getMonthDays(priorSeasonFirstDay.getFullYear(), priorSeasonFirstDay.getMonth()+2));
//添加至数组
priorSeasonFirstDay = priorSeasonFirstDay.getYear()+"-"+(priorSeasonFirstDay.getMonth()+1)+"-"+priorSeasonFirstDay.getDate();
priorSeasonLastDay = priorSeasonLastDay.getYear()+"-"+(priorSeasonLastDay.getMonth()+1)+"-"+priorSeasonLastDay.getDate();
startStop.push(priorSeasonFirstDay);
startStop.push(priorSeasonLastDay);
return startStop;
};
/**
* 得到去年的起止日期
* **/
function getPreviousYear(){
//起止日期数组
var startStop=new Array();
//获取当前时间
var currentDate=getCurrentDate();
//获得当前年份4位年
var currentYear=currentDate.getFullYear();
currentYear--;
var priorYearFirstDay=new Date(currentYear,0,1);
var priorYearLastDay=new Date(currentYear,11,1);
//添加至数组
startStop.push(priorYearFirstDay);
startStop.push(priorYearLastDay);
return startStop;
};
js上周(月、季)、上上周(月、季)、去年同期上周(月、季)
最新推荐文章于 2025-01-15 08:16:41 发布
这是一个JavaScript函数集合，用于获取当前时间、今年、昨天、本周、本月、本季度、上个月、上上周、上个季度和去年相同时间周期的起止日期。通过这些函数，可以方便地进行时间周期的数据对比和分析。
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