Validate Gregorian calendar dates that contain 24-hour times. This will also correctly match the Feb 29 date when it falls on a valid leap year. Leap years occur every 4 years, with one exception: when a year is evenly divisible by 100 but not evenly divisible by 400, the year will not be a leap year. Thus years 2100, 2200, and 2300 are not leap years but years 2000, 2400, and 2800 are.

Date with this format YYYY-MM-DD and year start 20 or 21 like 2014

Validates input to match UK Date Time standard

Email clients add this line, call it "sender wrote" to reply emails.

Date in format YYYYMMDD Year between [1900-2099] No leap year check but month 02 is limited to 29 days.

Convert numbers-only YYYYMMDD date to dash delineated YYYY-MM-DD

Regex for date in ISO 8601 format that also check the number of day in a month to be sure the date is valid

Valid format YYYY-MM-DD

Should match ISO 8601 datetime for Forecast.io API: YYYY]-[MM]-[DD]T[HH]:[MM]:[SS] with an optional time zone formatted as Z for GMT time or {+,-}[HH (with or without separating colon) for an offset

Validation of Date in the format YYYY-MM-DD

Covering Dates starting from year 2009 and older in French and English Some of the valid Dates format April 2nd 2008 April 2 2008 April 02 2008 2009-01-01 31-03-2009 03-31-2009 31 March 2009 March 31 2009 31 mars 2009 May 10th 1989 April 2nd 2008 2009.01.01 2009 1 31 31st december 2009 31 décembre 2009 31 Decembre 2009 2009/02/01 2009.01.01 2009 01 01 31 03 2009 12 31 2009

\b((?:19|20)\d{2})-(01-9]|1[0-2])-(0[1-9]|[12|3[01])\b

This will match all four-digit years that are leap years, using the "either (multiple of four but not a multiple of 100) OR (multiple of 400)" rule. Explained / ^( \d\d2468|\d\d13579|\d\d048]| # multiple of four but not 100 [0246800 |1357900 # multiple of four hundred )$ /gmx References Leap Year RFC 3339, the stricter rules that most systems use in practice ISO 8601, the widely known name for this format Test Cases // accept: multiple of four () 0004 0008 0012 0016 0020 0024 0028 0032 0036 0040 0044 0048 0052 0056 0060 0064 0068 0072 0076 0080 0084 0088 0092 0096 1560 2004 2008 2012 2016 2020 2024 2028 2032 2036 2040 2044 9996 // accept: Multiple of 400 0000 0400 0800 1200 1600 2000 2400 2800 3200 3600 4000 4400 4800 5200 5600 6000 6400 6800 7200 7600 8000 8400 8800 9200 9600 // REJECT: Not a multiple of four 0101 0102 0103 1537 1538 2001 2002 2003 2021 2022 2023 2025 2026 2027 2029 2030 2031 2033 2034 2035 2037 2038 2039 2041 2042 2043 9997 9998 9999 // REJECT: Multiple of 100 but not 400 0100 0200 0300 0500 0600 0700 0900 1000 1100 1500 2100 2200 2300 2500 2600 2700 2900 3000 3100 3300 3400 3500 3700 // REJECT: Negative dates not accepted (malformed) -2000 -0400 -0100 -0004 // REJECT: Out of range date per RFC 3339 10000

Accepting every date between 2010 to 2050. Format is YYYY-MM-DD hh:mm

find date format 31/04/2023 or 31/4/2023 (0?1-9]|[12|3[01])\/(0?[1-9]|1[012])\/\d{4}

find date format 2023-10-04 \d{4}-\d{2}-\d{2}

Returns object with dateTime elements .Designed for FiletimeStamp of logging module

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1-12 / 2022

Record Date Rule (Semantic)

Transform a date string like: Mon Nov 10 1957 12:34:56 UTC +08:00 into: 11/10/195 12:34:56

Validates a date string as a valid iso entry

Write a program, which matches a date in the format "dd{separator}MMM{separator}yyyy". Use capturing groups in your regular expression.

1. Type = xhr Response Headers access-control-allow-headers DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range,X-DEVICE-TOKEN,deviceToken,agent access-control-allow-methods access-control-allow-origin access-control-expose-headers access-control-max-age = 1728000 content-encoding = gzip content-type = application/json; charset = utf-8 date = Sat, 11 Feb 2023 04:29:06 GMT etag = W/"73d-UJDAIM5iwCpHWdETiOapCk02sEI" server = APISIX/2.13.0 strict-transport-security max-age=31536000; includeSubdomains; vary Accept-Encoding x-powered-by Express Request Headers Accept application/json, text/plain, / Response = { "result": 0, "message": "Success", "data": { "contracts": {"router": { "ETH": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "HECO": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "BSC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "MATIC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "TRON": "TKqQ7zuL7yKp1NWuhGpoXTDiE3j2qiAbRE", "FTM": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "OEC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "ARB": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "KLAY": "0x9865EeBdD1cE65f45b6247AEEd2fA2252ECA7A08", "AVAX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "KCC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "CFX": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "GLMR": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "OP": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "ETC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39" }, "approve": { "ETH": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "HECO": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "BSC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "MATIC": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39", "TRON": "TKqQ7zuL7yKp1NWuhGpoXTDiE3j2qiAbRE", "FTM": "0xb45A2DDA996C32E93B8c47098E90Ed0E7ab18E39",

Simple datetime expression for [DD.MM[.YYYY]]T[hh[:mm]]

Valid date (DD-MM-YYYY) from 1900 to 2099

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This is a re that can validate time with date with AM and PM

Classify \d\d \/ \d\d \/ \d{4} \w* \d\d, \d{4} \d{4}-\d\d-\d\d and label them

expression pour checker les dates

Date String ISO Pattern matcher

We can identify the valid Date formats using this regex.

Date format dd.mm.yyyy

MySQL DATETIME

credits to Sayooj V R

Very simple validation expression that will validate a date in the range of 19000101 through 20991231. These formats are very popular for partitioning and representing dates as Long values or Integers. This does not check for Leap year values, or the months with varying number of days. Please Note: this will return a match on 20220231 even though this is not a valid date. Additional validations should be used if Leap years and Days of the Month should be verified as well.

Attempt at datetime parsing

relative date format

Validates dates in MM/DD/YYYY format

Comes with choice of four separators

Date EN