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This works for all accept 01/01/0000 mainly 0000. can anybody suggest a solution.

Fromat check for MM/YY, checks month is 1-12 and any 2 digit year.

24 hour clock as prefered by MS-SQL, allows for shorter more human methods of writing time (no preceding zero or seconds required). MS-SQL prefers semi-colon although this accepts full stops for users ease of use.

improved date validation M/D/YY or M/D/YYYY or MM/DD/YYYY or MM/DD/YY: 1/1/1920 through 12/31/2019; Feb 29 and 30 always allowed, deal with it

Matches times seperated by either : or . will match a 24 hour time, or a 12 hour time with AM or PM specified. Allows 0-59 minutes, and 0-59 seconds. Seconds are not required.

this expression validates a date-time field in European d/m/y h:m:s format. It is a european variation of Michael Ash's date-validation expression in this library. The days are validated for the given month and year. Leap years are validated for all 4 digits years from 1600-9999, and all 2 digits years except 00

This regular expressions matches dates in the format MM/YYYY where MM can be 01 to 12 and YYYY is always 4 digits long.

This is an new data Validation to MM/YYYY from 1900 to 2999 this is an validation expression to Client From MOnth/Year.

HHmmss without any separators. Hours in 24h format.

This matches timezone offsets. Also matches non-hour offsets like India (+05:30) and Nepal (+5:45}. See for more timezone information: http://en.wikipedia.org/wiki/Time_zone

Matches the date format "YYYY-mm-dd" and also validates month and number of days in a month. All leap year dates "YYYY-02-29" passes trough. Could easily be changed to another format.

This regular expressions matches dates of the form XX/XX/YYYY where XX can be 1 or 2 digits long and YYYY is always 4 digits long.

Jason West (jason.west@mail.state.ky.us) date validator with leap years using a strict dd/mm/yyyy (ITALIAN) format

YYYY/MM/DD hh:mm:ss format DateTime Regex. This regex will validate a date, time or a datetime. It will also capture the date fields and the time. Dates are in the YYYY/MM/DD format and validated for months, number of days in a month and leap years (29/2) Date field can be separated by matched periods(.), dashes(-) or forward slashes(/) Time is either 12 hour AM/PM format (hh:mm:ss AM), where minutes and seconds are optional. AM or PM required. or 24 hour military format (hh:mm:ss), from 00:00:00 to 23:59:59, where hours and minutes fields are required, including leading 0 for hours less than 10. Please refer to http://blogs.regexadvice.com/mash/archive/2004/04/23/1021.aspx for additional info Datetime is the above date and time formats separated by a space, with the date first (YYYY/MM/DD hh:mm:ss) !IMPORTANT NOTE: your regex engine must support lookbehinds and named groups to use this expression

This expression validates dates in the y/m/d format from 1600/1/1 - 9999/12/31. Follows the same validation rules for dates as my other date validator (m/d/y format) located in this library.

Verifies all valid Gregorian dates of the form DD MONTH YY, taking days/month and leap years into account.

dd/mm/yyyy hh:MM:ss Datetime for all AD years, including leap years. Javascript safe version of http://regexlib.com/REDetails.aspx?regexp_id=691. Please see that regex for details of what is being checked

DateTime Validator. This RE validates both dates and/or times patterns. Days in Feb. are also validated for Leap years. Dates: in dd/mm/yyyy or d/m/yy format between 1/1/1600 - 31/12/9999. Leading zeroes are optional. Date separators can be either matching dashes(-), slashes(/) or periods(.) Times: in the hh:MM:ss AM/PM 12 hour format (12:00 AM - 11:59:59 PM) or hh:MM:ss military time format (00:00:00 - 23:59:59). The 12 hour time format: 1) may have a leading zero for the hour. 2) Minutes and seconds are optional for the 12 hour format 3) AM or PM is required and case sensitive. Military time 1) must have a leading zero for all hours less than 10. 2) Minutes are manditory. 3) seconds are optional. Datetimes: combination of the above formats. A date first then a time separated by a space. ex) dd/mm/yyyy hh:MM:ss This RE is an variation of one of my other Datetime (mm/dd/yyyy) validator already in this library http://www.regexlib.com/REDetails.aspx?regexp_id=369, so the same rules for leap year apply. All 4 digit year and all two digit years except 00, which might not be a leap year.

mm/dd/yyyy hh:MM:ss Datetime for all AD years, including leap years. Javascript safe version of http://regexlib.com/REDetails.aspx?regexp_id=644. Please see that regex for details of what is being checked

For testing 24H based time entry. Tests if there is a colon to separate the hours from the minutes