Question

可能重复：
How to calculate the number of days between two dates using javascript

我有那些日期：

27/09/2011
29/10/2011

我希望返回这些日期之间的日期（例如，应该是33天）。

我怎么能在javascript（或jquery？）上做到这一点？

Answer 1

var daysBetween = (Date.parse(DATE1) - Date.parse(DATE2)) / (24 * 3600 * 1000);

Answer 2

function days_between(date1, date2) {

    // The number of milliseconds in one day
    var ONE_DAY = 1000 * 60 * 60 * 24

    // Convert both dates to milliseconds
    var date1_ms = date1.getTime()
    var date2_ms = date2.getTime()

    // Calculate the difference in milliseconds
    var difference_ms = Math.abs(date1_ms - date2_ms)

    // Convert back to days and return
    return Math.round(difference_ms/ONE_DAY)

}

http://www.mcfedries.com/JavaScript/DaysBetween.asp

Answer 3

// split the date into days, months, years array
var x = "27/09/2011".split('/')
var y = "29/10/2011".split('/')

// create date objects using year, month, day
var a = new Date(x[2],x[1],x[0])
var b = new Date(y[2],y[1],y[0])

// calculate difference between dayes
var c = ( b - a )

// convert from milliseconds to days
// multiply milliseconds * seconds * minutes * hours
var d = c / (1000 * 60 * 60 * 24)

// show what you got
alert( d )

注意：我发现这种方法比Date.parse()更安全，因为你明确指定了输入的日期格式（通过在开头分成年，月，日）。根据您的日期来自哪个国家/地区，03/04/2008可能3rd of April, 2008或4th of March, 2008，这对于避免歧义非常重要。

如何计算javascript中两个日期之间的天数？

3 个答案: