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match a date dd/mm/yyyy
Regex title
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JavaScript
Expression
/
Regular expression
(?:
(?:
31
(
\/
|
-
|
\.
)
(?:
0
?
[13578]
|
1
[02]
)
)
\1
|
(?:
(?:
29
|
30
)
(
\/
|
-
|
\.
)
(?:
0
?
[13-9]
|
1
[0-2]
)
\2
)
)
(?:
(?:
1
[6-9]
|
[2-9]
\d
)
?
\d
{2}
)
$
|
^
(?:
29
(
\/
|
-
|
\.
)
0
?
2
\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]
)
|
(?:
1
[0-2]
)
)
\4
(?:
(?:
1
[6-9]
|
[2-9]
\d
)
?
\d
{2}
)
(?:(?:31(\/|-|\.)(?:0?[13578]|1[02]))\1|(?:(?:29|30)(\/|-|\.)(?:0?[13-9]|1[0-2])\2))(?:(?:1[6-9]|[2-9]\d)?\d{2})$|^(?:29(\/|-|\.)0?2\3(?:(?:(?:1[6-9]|[2-9]\d)?(?:0[48]|[2468][048]|[13579][26])|(?:(?:16|[2468][048]|[3579][26])00))))$|^(?:0?[1-9]|1\d|2[0-8])(\/|-|\.)(?:(?:0?[1-9])|(?:1[0-2]))\4(?:(?:1[6-9]|[2-9]\d)?\d{2})
/
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Test bench
Sample text
4 matches
01/01/2000
31/01/2000
32/01/2000
01-1-2000
1.1.2019
01/01/2000 31/01/2000 32/01/2000 01-1-2000 1.1.2019
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Strings that match
01/01/2000
31/01/2000
01-1-2000
1.1.2019
Strings that don’t match
32/01/2000