This code where I subtract days from a date does not get the right results. functionget_Ash_Wednesday_date(year,Easter_month,Easter_day) {varEaster_date =newDate();Easter_date.setFullYear(year,Easter_month-1,Easter_day);varAsh_Wednesday =newDate();Ash_Wednesday.setFullYear(year);Ash_Wednesda...
5 days from today //past var fiveDaysAgo = new Date(new Date().setDate(new Date().getDate() - 5)); //future var fiveDaysInTheFuture = new Date(new Date().setDate(new Date().getDate() + 5)); 5 days from a specific date var pastDate = new Date('2019-12-12T00:00:00')...
How to subtract days from a date in JavaScript - In this tutorial, we will learn how to subtract days from a date in JavaScript. To subtract days from a JavaScript Date object, use the setDate() method. Under that, get the current days and subtract days.
How to Add Years to a Date in JavaScript I wrotea bookin which I share everything I know about how to become a better, more efficient programmer. You can use the search field on myHome Pageto filter through all of my articles.
要将给定的日期减去15天,我们可以使用getDate()方法获取当前日期,然后使用setDate()方法将日期设置为减去15的结果。以下是完整的JavaScript代码示例: functionsubtractDays(date,days){constresultDate=newDate(date);resultDate.setDate(resultDate.getDate()-days);returnresultDate;}constcurrentDate=newDate();consts...
In this tutorial, our focus will be on learning how to add or subtract a period of time such as years, months, days, hours, and minutes from a specified date. How to Add Years, Months, and Days to a Date You might recall from our other tutorial that JavaScript has methods such a...
functionsubtractTimeFromDate(objDate,intHours){varnumberOfMlSeconds=objDate.getTime();varaddMlSeconds=(intHours*60)*60*1000;varnewDateObj=newDate(numberOfMlSeconds-addMlSeconds);returnnewDateObj;} As you can see, it’s almost identical to the add operation. The only difference is that we’...
new Date(dateString); // 可接受参数形式类似于Date.UTC()方法的参数,但Date.UTC()方法返回是一个毫秒数,且是UTC时间,而Date()函数返回是一个对象,且是本地时间。 new Date(year, month[, day[, hour[, minutes[, seconds[, milliseconds]]]); --...
d.addDays(10); var a = d.toString("yyyy/MM/dd"); Constructors new XDate() 使用当前的日期和时间创建一个新的XDate new XDate(xdate) 创建一个新的XDate从一个xdate对象 new XDate(nativeDate) 创建一个新的XDate从一个指定的日期 new XDate(milliseconds) ...
subtract(20, "minute").format('YYYY-MM-DD HH:mm:ss') // 输出: 2021-09-17 07:50:00 使用插件来扩展功能 1. RelativeTime 查看文档 获取指定时间到现在的时间差。 import dayjs from "dayjs"; import relativeTime from "dayjs/plugin/relativeTime"; dayjs.extend(relativeTime); dayjs("2021-...