Regular Expression for Date

Regular Expression for Date
^([1-9]0[1-9]1[0-2])/([1-9]0[1-9][1-2][0-9]3[01])/([1-9][0-9][0-9][0-9])$
It accepts following format

• mm/dd/yyyy
• m/d/yyyy

It accepts following value

• any value of month in between 01-12 or 1-12
• any value of day in between 01-31 or 1-31
• any value of year in between 1000-9999