^(((([13578]|0[13578]|1[02])[-](0[1-9]|[1-9]|1[0-9]|2[0-9]|3[01]))|(([469]|0[469]|11)[-]([1-9]|1[0-9]|2[0-9]|3[0]))|((2|02)([-](0[1-9]|1[0-9]|2[0-8]))))[-](19([6-9][0-9])|20([0-9][0-9])))|((02)[-](29)[-](19(6[048]|7[26]|8[048]|9[26])|20(0[048]|1[26]|2[048])))

这个正则表达式将验证日期的格式:

12-30-2016 (mm-dd-yyyy)或12-3-2016 (mm-d-yyyy)或 1-3-2016 (m-d-yyyy)或1-30-2016 (m-dd-yyyy)

python的简单函数

def is_valid_date(date_text):
    pattern = re.compile('\d{4}-\d{2}-\d{2}$')
    return pattern.match(date_text)

另一种答案，根据月(mm)和年(yyyy)验证日(dd)(即，在闰年也验证2月29日)，并允许年范围从0001到9999(根据公历，0000是无效年)

^(?:(?:(?:0[1-9]|[12]\d|3[01])/(?:0[13578]|1[02])|(?:0[1-9]|[12]\d|30)/(?:0[469]|11)|(?:0[1-9]|1\d|2[0-8])/02)/(?!0000)\d{4}|(?:(?:0[1-9]|[12]\d)/02/(?:(?!0000)(?:[02468][048]|[13579][26])00|(?!..00)\d{2}(?:[02468][048]|[13579][26]))))$

year  = ((20[012]\d|19\d\d)|(1\d|2[0123])) 
month = ((0[0-9])|(1[012]))
day   = ((0[1-9])|([12][0-9])|(3[01]))

year-month-day = (((20[012]\d|19\d\d)|(1\d|2[0123]))-((0[0-9])|(1[012]))-((0[1-9])|([12][0-9])|(3[01])))
day-month-year = (((0[1-9])|([12][0-9])|(3[01]))-((0[0-9])|(1[012]))-((20[012]\d|19\d\d)|(1\d|2[0123])))
year/month/day = (((20[012]\d|19\d\d)|(1\d|2[0123]))\/((0[0-9])|(1[012]))\/((0[1-9])|([12][0-9])|(3[01])))
month/day/year = (((0[0-9])|(1[012]))\/((0[1-9])|([12][0-9])|(3[01]))\/((20[012]\d|19\d\d)|(1\d|2[0123])))
day/month/year = (((0[1-9])|([12][0-9])|(3[01]))\/((0[0-9])|(1[012]))\/((20[012]\d|19\d\d)|(1\d|2[0123])))
day.month.year = (((0[1-9])|([12][0-9])|(3[01]))\.((0[0-9])|(1[012]))\.((20[012]\d|19\d\d)|(1\d|2[0123])))
year.month.day = (((20[012]\d|19\d\d)|(1\d|2[0123]))\.((0[0-9])|(1[012]))\.((0[1-9])|([12][0-9])|(3[01])))


all = (((20[012]\d|19\d\d)|(1\d|2[0123]))-((0[0-9])|(1[012]))-((0[1-9])|([12][0-9])|(3[01])))|(((0[1-9])|([12][0-9])|(3[01]))-((0[0-9])|(1[012]))-((20[012]\d|19\d\d)|(1\d|2[0123])))|(((20[012]\d|19\d\d)|(1\d|2[0123]))\/((0[0-9])|(1[012]))\/((0[1-9])|([12][0-9])|(3[01])))|(((0[0-9])|(1[012]))\/((0[1-9])|([12][0-9])|(3[01]))\/((20[012]\d|19\d\d)|(1\d|2[0123])))|(((0[1-9])|([12][0-9])|(3[01]))\/((0[0-9])|(1[012]))\/((20[012]\d|19\d\d)|(1\d|2[0123])))|(((0[1-9])|([12][0-9])|(3[01]))\.((0[0-9])|(1[012]))\.((20[012]\d|19\d\d)|(1\d|2[0123])))|(((20[012]\d|19\d\d)|(1\d|2[0123]))\.((0[0-9])|(1[012]))\.((0[1-9])|([12][0-9])|(3[01])))

它的工作是

yyyy-mm-dd
dd-mm-yyyy
yyyy/mm/dd
mm/dd/yyyy
dd/mm/yyyy
dd.mm.yyyy
yyyy.mm.dd

yy-mm-dd
dd-mm-yy
yyyy/mm/dd
mm/dd/yy
dd/mm/yy
dd.mm.yy
yy.mm.dd

但不适用于日= d或月= m，例如d.m.y yyyy

所有示例-此处输入链接描述

如果您正在寻找特定的格式，这适用于“dd/MM/yyyy”和“dd/MMM/yyyy”日期格式，仅基于Alok答案。

function isValidDateFormatDDMMYYYY(inputDate) {
    var date_regex = /^(?:(?:31(\/)(?:0?[13578]|1[02]|(?:Jan|Mar|May|Jul|Aug|Oct|Dec)))\1|(?:(?:29|30)(\/)(?:0?[1,3-9]|1[0-2]|(?:Jan|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec))\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/)(?:0?2|(?:Feb))\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/)(?:(?:0?[1-9]|(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep))|(?:1[0-2]|(?:Oct|Nov|Dec)))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$/;
    return date_regex.test(inputDate);
}

一些示例通过这段代码-

isValidDateFormatDDMMYYYY("15/01/1999") //返回True isValidDateFormatDDMMYYYY("15/Jan/1999") //返回True isValidDateFormatDDMMYYYY("15/1/1999") //返回True isValidDateFormatDDMMYYYY("1/15/1999") //返回False

谢谢

"^(0[1-9]|[12][0-9]|3[01])[- /.](0[1-9]|1[012])[- /.]((19|20)\\d\\d)$"

是否会在1900-2099年之间生效