134 regular expressions found in this category!
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Title |
Test
Details
Pattern Title
|
Expression |
^(20|21|22|23|[0-1]\d)[0-5]\d$ |
Description |
This regular expression will match a 24 hour time with no separators. |
Matches |
1200 | 1645 | 2359 |
Non-Matches |
2400 | asbc | 12:45 |
Author |
Rating:
Steven Smith
|
Title |
Test
Details
Pattern Title
|
Expression |
^((0?[13578]|10|12)(-|\/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[01]?))(-|\/)((19)([2-9])(\d{1})|(20)([01])(\d{1})|([8901])(\d{1}))|(0?[2469]|11)(-|\/)(([1-9])|(0[1-9])|([12])([0-9]?)|(3[0]?))(-|\/)((19)([2-9])(\d{1})|(20)([01])(\d{1})|([8901])(\d{1})))$ |
Description |
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 |
1/2/03 | 02/30/1999 | 3/04/00 |
Non-Matches |
3/4/2020 | 3/4/1919 | 4/31/2000 |
Author |
Rating:
Brad Williams
|
Title |
Test
Details
Pattern Title
|
Expression |
^(\d{2}((0[1-9]|1[012])(0[1-9]|1\d|2[0-8])|(0[13456789]|1[012])(29|30)|(0[13578]|1[02])31)|([02468][048]|[13579][26])0229)$ |
Description |
yyMMdd with leap years.
Minimized expression.
As we have only 2 numbers for the years, dates 1600, 2000, etc are still validated. |
Matches |
001231 | 000229 | 040229 |
Non-Matches |
003112 | 000431 | 010229 |
Author |
Rating:
Dany Lauener
|
Title |
Test
Details
Pattern Title
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Expression |
^([0-9]{2})(00[1-9]|0[1-9][0-9]|[1-2][0-9][0-9]|3[0-5][0-9]|36[0-6])$ |
Description |
Matches a Julian date in the format YYDDD. Two digit year followed by a number from 1 - 366 indicating the day of the year. |
Matches |
99366 | 00001 |
Non-Matches |
74000 | 04367 |
Author |
Rating:
Brian James
|
Title |
Test
Details
yyyy/mm/dd hhMMss Date
|
Expression |
^(?ni:(?=\d)((?'year'((1[6-9])|([2-9]\d))\d\d)(?'sep'[/.-])(?'month'0?[1-9]|1[012])\2(?'day'((?<!(\2((0?[2469])|11)\2))31)|(?<!\2(0?2)\2)(29|30)|((?<=((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|(16|[2468][048]|[3579][26])00)\2\3\2)29)|((0?[1-9])|(1\d)|(2[0-8])))(?:(?=\x20\d)\x20|$))?((?<time>((0?[1-9]|1[012])(:[0-5]\d){0,2}(\x20[AP]M))|([01]\d|2[0-3])(:[0-5]\d){1,2}))?)$ |
Description |
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 |
Matches |
12:30 PM | 2004-02-29 | 2004/3/31 02:31:35 AM |
Non-Matches |
2:00 | 2200.2.29 | 0000/00/00 00:00:00 AM |
Author |
Rating:
Michael Ash
|
Title |
Test
Details
Date With Slashes
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Expression |
^\d{1,2}\/\d{1,2}\/\d{4}$ |
Description |
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. |
Matches |
4/1/2001 | 12/12/2001 | 55/5/3434 |
Non-Matches |
1/1/01 | 12 Jan 01 | 1-1-2001 |
Author |
Rating:
Steven Smith
|
Title |
Test
Details
Pattern Title
|
Expression |
^((\d{2}((0[13578]|1[02])(0[1-9]|[12]\d|3[01])|(0[13456789]|1[012])(0[1-9]|[12]\d|30)|02(0[1-9]|1\d|2[0-8])))|([02468][048]|[13579][26])0229)$ |
Description |
Date expression validator with format YYMMDD
Validates leap years.
Of course, as year has only 2 digits, it's not possible to invalidate years like 2100, 2200, 2300, etc as a non-leap years ! |
Matches |
751231 | 000229 | 040229 |
Non-Matches |
750431 | 010229 | 050229 |
Author |
Rating:
Dany Lauener
|
Title |
Test
Details
Pattern Title
|
Expression |
^((((0?[1-9]|[12]\d|3[01])[\.\-\/](0?[13578]|1[02])[\.\-\/]((1[6-9]|[2-9]\d)?\d{2}))|((0?[1-9]|[12]\d|30)[\.\-\/](0?[13456789]|1[012])[\.\-\/]((1[6-9]|[2-9]\d)?\d{2}))|((0?[1-9]|1\d|2[0-8])[\.\-\/]0?2[\.\-\/]((1[6-9]|[2-9]\d)?\d{2}))|(29[\.\-\/]0?2[\.\-\/]((1[6-9]|[2-9]\d)?(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)|00)))|(((0[1-9]|[12]\d|3[01])(0[13578]|1[02])((1[6-9]|[2-9]\d)?\d{2}))|((0[1-9]|[12]\d|30)(0[13456789]|1[012])((1[6-9]|[2-9]\d)?\d{2}))|((0[1-9]|1\d|2[0-8])02((1[6-9]|[2-9]\d)?\d{2}))|(2902((1[6-9]|[2-9]\d)?(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00)|00))))$ |
Description |
Date with leap years. Accepts '.' '-' and '/' as separators
d.m.yy to dd.mm.yyyy (or d.mm.yy, etc)
Ex: dd-mm-yyyy d.mm/yy dd/m.yyyy etc etc
Accept 00 years also. |
Matches |
29.2.2004 | 31121975 | 29/2-00 |
Non-Matches |
29.2.2005 | 32121975 | 29.2/01 |
Author |
Rating:
Dany Lauener
|
Title |
Test
Details
Pattern Title
|
Expression |
^((((0[13578])|(1[02]))[\/]?(([0-2][0-9])|(3[01])))|(((0[469])|(11))[\/]?(([0-2][0-9])|(30)))|(02[\/]?[0-2][0-9]))[\/]?\d{4}$ |
Description |
Date expressions that matches MM/DD/YYYY where MM and DD must be two digits and zero padded. Validates correctly for all months except February, which it assumes to always have 29 days. The "/" separator is optional. |
Matches |
01/01/2001 | 02/29/2002 | 12/31/2002 |
Non-Matches |
1/1/02 | 02/30/2002 | 1/25/2002 |
Author |
Rating:
Steven Smith
|
Title |
Test
Details
Pattern Title
|
Expression |
^(([0-1]?[0-9])|([2][0-3])):([0-5]?[0-9])(:([0-5]?[0-9]))?$ |
Description |
Time in 24 hours format with optional seconds |
Matches |
12:15 | 10:26:59 | 22:01:15 |
Non-Matches |
24:10:25 | 13:2:60 |
Author |
Rating:
Carlos R. L. Rodrigues
|
Title |
Test
Details
Pattern Title
|
Expression |
^(?=\d)(?:(?:31(?!.(?:0?[2469]|11))|(?:30|29)(?!.0?2)|29(?=.0?2.(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00)))(?:\x20|$))|(?:2[0-8]|1\d|0?[1-9]))([-./])(?:1[012]|0?[1-9])\1(?:1[6-9]|[2-9]\d)?\d\d(?:(?=\x20\d)\x20|$))?(((0?[1-9]|1[012])(:[0-5]\d){0,2}(\x20[AP]M))|([01]\d|2[0-3])(:[0-5]\d){1,2})?$ |
Description |
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. |
Matches |
31/12/2003 11:59:59 PM | 29-2-2004 | 01:45:02 |
Non-Matches |
12/31/2003 | 29.02.2005 | 13:30 PM |
Author |
Rating:
Michael Ash
|
Title |
Test
Details
Pattern Title
|
Expression |
^[0,1]?\d{1}\/(([0-2]?\d{1})|([3][0,1]{1}))\/(([1]{1}[9]{1}[9]{1}\d{1})|([2-9]{1}\d{3}))$ |
Description |
This expression checks the validity of a date (US, but it is easily editable for other format's). Year's 1990-9999, Month's 1 or 01 to 12, Day's 1 or 01 to 31. Still needs to have individual months added (i.e., Feb's 28 days), and some how to check for leap year...the months issue should not be to hard, but the leap year seems like a real chore. Please let me know if you have any suggestions for leap year.
|
Matches |
01/01/1990 | 12/12/9999 | 3/28/2001 |
Non-Matches |
3-8-01 | 13/32/1001 | 03/32/1989 |
Author |
Rating:
Scott Watermasysk
|
Title |
Test
Details
Pattern Title
|
Expression |
(((0[1-9]|[12][0-9]|3[01])([/])(0[13578]|10|12)([/])(\d{4}))|(([0][1-9]|[12][0-9]|30)([/])(0[469]|11)([/])(\d{4}))|((0[1-9]|1[0-9]|2[0-8])([/])(02)([/])(\d{4}))|((29)(\.|-|\/)(02)([/])([02468][048]00))|((29)([/])(02)([/])([13579][26]00))|((29)([/])(02)([/])([0-9][0-9][0][48]))|((29)([/])(02)([/])([0-9][0-9][2468][048]))|((29)([/])(02)([/])([0-9][0-9][13579][26]))) |
Description |
Date in DD/MM/YYYY format.
Fecha en formato DD/MM/AAAA. |
Matches |
28/12/2003 | 28/02/2003 | 29/02/2000 |
Non-Matches |
28-02-2003 | 30/02/2003 | 28.02.2003 |
Author |
Rating:
Mathews Inga
|
Title |
Test
Details
Pattern Title
|
Expression |
^([0]?[1-9]|[1|2][0-9]|[3][0|1])[./-]([0]?[1-9]|[1][0-2])[./-]([0-9]{4}|[0-9]{2})$ |
Description |
Validate brazilian date formats: dd/mm/yyyy or d/m/yy or d.m.yyyy
with separators: . - /
Valid dates only! d (1-31)/ m (1-12)/ y (0..)
(rizzipereira.com.br)
For American date format: http://www.regexlib.com/REDetails.aspx?regexp_id=932 |
Matches |
10/03/1979 | 1-1-02 | 01.1.2003 |
Non-Matches |
10/03/197 | 09--02--2004 | 01 02 03 |
Author |
Rating:
Diego dos Santos
|
Title |
Test
Details
Pattern Title
|
Expression |
(([0-1][0-9])|([2][0-3])):([0-5][0-9]):([0-5][0-9]) |
Description |
Validates time in MySQL time format. 24 hour time colon seperated hours:minutes:seconds |
Matches |
09:30:00 | 17:45:20 | 23:59:59 |
Non-Matches |
24:00:00 |
Author |
Rating:
Patrick O'Hara
|
Title |
Test
Details
Pattern Title
|
Expression |
^((0[1-9])|(1[0-2]))\/(\d{2})$ |
Description |
Validates MM/YY for rough checking credit card expiration dates. |
Matches |
11/03 | 01/04 |
Non-Matches |
13/03 | 10/2003 |
Author |
Rating:
Kevin Coleman
|
Title |
Test
Details
Pattern Title
|
Expression |
^[0-9]{4}-(((0[13578]|(10|12))-(0[1-9]|[1-2][0-9]|3[0-1]))|(02-(0[1-9]|[1-2][0-9]))|((0[469]|11)-(0[1-9]|[1-2][0-9]|30)))$ |
Description |
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. |
Matches |
2004-04-30 | 2004-02-29 |
Non-Matches |
2004-04-31 | 2004-02-30 |
Author |
Rating:
Johan Södercrantz
|
Title |
Test
Details
RFC 2822 Date Regex
|
Expression |
^(?:\s*(Sun|Mon|Tue|Wed|Thu|Fri|Sat),\s*)?(0?[1-9]|[1-2][0-9]|3[01])\s+(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s+(19[0-9]{2}|[2-9][0-9]{3}|[0-9]{2})\s+(2[0-3]|[0-1][0-9]):([0-5][0-9])(?::(60|[0-5][0-9]))?\s+([-\+][0-9]{2}[0-5][0-9]|(?:UT|GMT|(?:E|C|M|P)(?:ST|DT)|[A-IK-Z]))(\s*\((\\\(|\\\)|(?<=[^\\])\((?<C>)|(?<=[^\\])\)(?<-C>)|[^\(\)]*)*(?(C)(?!))\))*\s*$ |
Description |
This is the best RFC 2822 ( http://www.faqs.org/rfcs/rfc2822 ) date format regular expression I could come up with. I've tested it, not very extensively though. This regex also validates obsolete standard, excluding comments anywhere. |
Matches |
Thu, 6 Jan 2005 18:44:56 -0500 | Thu, 21 Dec 2000 16:01:07 +0200 (\(proper\) & (nested) comment) |
Non-Matches |
Thu, 0 Jan 1856 18: 44:56 -0500 | Thu, 21 Dec 2000 16:01:07 +0200 (\(improper) comment) | blah |
Author |
Rating:
Ivik Injerd
|
Title |
Test
Details
Pattern Title
|
Expression |
^(?=\d)(?:(?!(?:(?:0?[5-9]|1[0-4])(?:\.|-|\/)10(?:\.|-|\/)(?:1582))|(?:(?:0?[3-9]|1[0-3])(?:\.|-|\/)0?9(?:\.|-|\/)(?:1752)))(31(?!(?:\.|-|\/)(?:0?[2469]|11))|30(?!(?:\.|-|\/)0?2)|(?:29(?:(?!(?:\.|-|\/)0?2(?:\.|-|\/))|(?=\D0?2\D(?:(?!000[04]|(?:(?:1[^0-6]|[2468][^048]|[3579][^26])00))(?:(?:(?:\d\d)(?:[02468][048]|[13579][26])(?!\x20BC))|(?:00(?:42|3[0369]|2[147]|1[258]|09)\x20BC))))))|2[0-8]|1\d|0?[1-9])([-.\/])(1[012]|(?:0?[1-9]))\2((?=(?:00(?:4[0-5]|[0-3]?\d)\x20BC)|(?:\d{4}(?:$|(?=\x20\d)\x20)))\d{4}(?:\x20BC)?)(?:$|(?=\x20\d)\x20))?((?:(?:0?[1-9]|1[012])(?::[0-5]\d){0,2}(?:\x20[aApP][mM]))|(?:[01]\d|2[0-3])(?::[0-5]\d){1,2})?$ |
Description |
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 |
Matches |
31.12.6008 | 5:30 AM | 30-04-1066 |
Non-Matches |
00/00/0000 | 99:99:99 | 29/02/2005 |
Author |
Rating:
Michael Ash
|
Title |
Test
Details
M/d/y Date
|
Expression |
^(?:(?:(?:0?[13578]|1[02])(\/|-|\.)31)\1|(?:(?:0?[13-9]|1[0-2])(\/|-|\.)(?:29|30)\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:0?2(\/|-|\.)29\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:(?:0?[1-9])|(?:1[0-2]))(\/|-|\.)(?:0?[1-9]|1\d|2[0-8])\4(?:(?:1[6-9]|[2-9]\d)?\d{2})$ |
Description |
This expression validates dates in the US m/d/y format from 1/1/1600 - 12/31/9999. |
Matches |
01.1.02 | 11-30-2001 | 2/29/2000 |
Non-Matches |
02/29/01 | 13/01/2002 | 11/00/02 |
Author |
Rating:
Michael Ash
|
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