blocks|key|772738|text|您最初的正则表达式有缺陷:例如，它与04:00不匹配。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|772739|这可能会更好地工作：|772740|%5E([0-1]?[0-9]%7C2[0-3]):[0-5][0-9]$|code-block|syntax|javascript|772741|entityMap^0|I|5|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|R|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|S|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|N|$]]

Your original regular expression has flaws: it wouldn't match <code>04:00</code> for example.

This may work better:

<pre><code>^([0-1]?[0-9]|2[0-3]):[0-5][0-9]$
</code></pre>

blocks|key|556573|text|你可以使用这个24小时，秒数是可选的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556574|%5E([0-1]?[0-9]%7C[2][0-3]):([0-5][0-9])(:[0-5][0-9])?$|code-block|syntax|javascript|556575|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use this one 24H, seconds are optional

<pre><code>^([0-1]?[0-9]|[2][0-3]):([0-5][0-9])(:[0-5][0-9])?$
</code></pre>

blocks|key|556447|text|最好的选择是HH:MM，不用冒任何风险。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556448|%5E(0[0-9]%7C1[0-9]%7C2[0-3]):[0-5][0-9]$|code-block|syntax|javascript|556449|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The best would be for HH:MM without taking any risk.

<pre><code>^(0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$
</code></pre>

blocks|key|556384|text|令人惊讶的是，我发现实际上所有这些都不能完全覆盖它，因为它们不适用于0:0的较短格式午夜，其中一些也不适用于00:00，我使用并测试了以下内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556385|%5E([0-9]%7C0[0-9]%7C1?[0-9]%7C2[0-3]):[0-5]?[0-9]$|code-block|syntax|javascript|556386|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Amazingly I found actually all of these don't quite cover it, as they don't work for shorter format midnight of 0:0 and a few don't work for 00:00 either, I used and tested the following:

<pre><code>^([0-9]|0[0-9]|1?[0-9]|2[0-3]):[0-5]?[0-9]$
</code></pre>

blocks|key|773139|text|您可以使用以下正则表达式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773140|%5E(2[0-3]%7C[01]?[0-9]):([1-5]{1}[0-9])$|code-block|syntax|javascript|773141|如果要排除00:00，可以使用以下表达式|773142|%5E(2[0-3]%7C[01]?[0-9]):(0[1-9]{1}%7C[1-5]{1}[0-9])$|773143|第二个表达式是更好的选择，因为有效时间是00:01到00:59或0:01到23:59。您可以根据需要使用这些工具中的任何一个。Regex101+link|offset|length|773144|entityMap|0|LINK|mutability|MUTABLE|url|http://regex101.com/r/mN1iT5/16^0|0|0|0|0|1R|D|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

You can use this regular expression:

<pre><code>^(2[0-3]|[01]?[0-9]):([1-5]{1}[0-9])$
</code></pre>

If you want to exclude 00:00, you can use this expression

<pre><code>^(2[0-3]|[01]?[0-9]):(0[1-9]{1}|[1-5]{1}[0-9])$
</code></pre>

Second expression is better option because valid time is 00:01 to 00:59 or 0:01 to 23:59. You can use any of these upon your requirement.
<a href="http://regex101.com/r/mN1iT5/16" rel="nofollow noreferrer">Regex101 link</a>

blocks|key|556886|text|正如你问的最左边的可选部分，我也做了最左边和最右边的可选部分，看看它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556887|%5E([0-9]%7C0[0-9]%7C1[0-9]%7C2[0-3]):[0-5][0-9]?$|code-block|syntax|javascript|556888|它与|556889|0:0+
00:00
00:0+
0:00
23:59
01:00
00:59|556890|实况链接可通过here获得|offset|length|556891|entityMap|0|LINK|mutability|MUTABLE|url|https://regex101.com/r/QVbb8w/1/^0|0|0|0|0|7|4|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|10|8|@]|9|@$M|11|N|12|1|13]]|A|$]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

As you asked the left most bit optional, I have done left most and right most bit optional too, check it out 

<pre><code>^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]?$
</code></pre>

It matches with

<pre><code>0:0 
00:00
00:0 
0:00
23:59
01:00
00:59
</code></pre>

The live link is available <a href="https://regex101.com/r/QVbb8w/1/" rel="nofollow noreferrer">here</a>

blocks|key|773438|text|上面的答案对我都不起作用，下面的答案起作用了。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773439|"[0-9]{2}:[0-9]{2}"|code-block|syntax|javascript|773440|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

None of the above answers worked for me, the following one worked.
<pre><code>&quot;[0-9]{2}:[0-9]{2}&quot;
</code></pre>

blocks|key|773189|text|您可以使用以下正则表达式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773190|%5E[0-1][0-9]:[0-5][0-9]$%7C%5E[2][0-3]:[0-5][0-9]$%7C%5E[2][3]:[0][0]$|code-block|syntax|javascript|773191|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use following regex: 

<pre><code>^[0-1][0-9]:[0-5][0-9]$|^[2][0-3]:[0-5][0-9]$|^[2][3]:[0][0]$
</code></pre>

blocks|key|556775|text|下面的正则表达式将有助于验证hh:mm格式|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556776|%5E([0-1][0-9]%7C2[0-3]):[0-5][0-9]$|code-block|syntax|javascript|556777|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The below regex will help to validate hh:mm format

<pre><code>^([0-1][0-9]|2[0-3]):[0-5][0-9]$
</code></pre>

blocks|key|556851|text|声明|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556852|private+static+final+String+TIME24HOURS_PATTERN+=+"([01]?[0-9]%7C2[0-3]):[0-5][0-9]:[0-5][0-9]";

public+boolean+validate(final+String+time)+{
++++pattern+=+Pattern.compile(TIME24HOURS_PATTERN);
++++matcher+=+pattern.matcher(time);
++++return+matcher.matches();
}|code-block|syntax|javascript|556853|当字符串与正则表达式匹配时，此方法返回"true“。|556854|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Declare

<pre><code>private static final String TIME24HOURS_PATTERN = "([01]?[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]";

public boolean validate(final String time) {
 pattern = Pattern.compile(TIME24HOURS_PATTERN);
 matcher = pattern.matcher(time);
 return matcher.matches();
}
</code></pre>

This method return "true" when String match with the Regular Expression.

blocks|key|556909|text|对凌晨4点以上的Manish+M+Demblani's贡献稍作修改(我去掉了seconds部分，因为我的应用程序中不需要它)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|556910|%5E(([0-1]{0,1}[0-9](+)?(AM%7Cam%7CaM%7CAm%7CPM%7Cpm%7CpM%7CPm))%7C(([0]?[1-9]%7C1[0-2])(:%7C\.)[0-5][0-9](+)?(AM%7Cam%7CaM%7CAm%7CPM%7Cpm%7CpM%7CPm))%7C(([0]?[0-9]%7C1[0-9]%7C2[0-3])(:%7C\.)[0-5][0-9]))$|code-block|syntax|javascript|556911|处理时间:+4:00+-+4:00+-4:00-4:00+pm+-4:30等。|556912|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/29921396/2657515^0|8|J|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

A slight modification to <a href="https://stackoverflow.com/a/29921396/2657515">Manish M Demblani's</a> contribution above
handles 4am 
(I got rid of the seconds section as I don't need it in my application)

<pre><code>^(([0-1]{0,1}[0-9]( )?(AM|am|aM|Am|PM|pm|pM|Pm))|(([0]?[1-9]|1[0-2])(:|\.)[0-5][0-9]( )?(AM|am|aM|Am|PM|pm|pM|Pm))|(([0]?[0-9]|1[0-9]|2[0-3])(:|\.)[0-5][0-9]))$
</code></pre>

handles:
4am
4 am
4:00
4:00am
4:00 pm
4.30 am
 etc..

blocks|key|773239|text|您可以尝试执行以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|773240|%5E\d{1,2}([:.]?\d{1,2})?([+]?[a%7Cp]m)?$|code-block|syntax|javascript|773241|它可以检测以下模式：|773242|2300+
23:00+
4+am+
4am+
4pm+
4+pm
04:30pm+
04:30+pm+
4:30pm+
4:30+pm
04.30pm
04.30+pm
4.30pm
4.30+pm
23:59+
0000+
00:00|773243|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can try the following

<pre><code>^\d{1,2}([:.]?\d{1,2})?([ ]?[a|p]m)?$
</code></pre>

It can detect the following patterns : 

<pre><code>2300 
23:00 
4 am 
4am 
4pm 
4 pm
04:30pm 
04:30 pm 
4:30pm 
4:30 pm
04.30pm
04.30 pm
4.30pm
4.30 pm
23:59 
0000 
00:00
</code></pre>

blocks|key|556511|text|检查我构建的这个masterfull+timestamp+detector正则表达式，以查找用户指定的时间戳，它将拾取的示例包括，但绝对不限于；|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|556512|8:30-9:40
09:40-09+:+50
09+:+40-09+:+50
09:40+-+09+:+50
08:00to05:00
08+:+00to05+:+00
08:00+to+05:00
8am-09pm
08h00+till+17h00
8pm-5am
08h00,21h00
06pm+untill+9am|code-block|syntax|javascript|556513|它还会拾取更多，只要时间包括数字|556514|entityMap|0|LINK|mutability|MUTABLE|url|http://regexr.com/395v5^0|8|T|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]]|C|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|C|$]]|$1|K|3|-4|5|6|7|Y|8|@]|9|@]|C|$]]]|L|$M|$5|N|O|P|C|$Q|R]]]]

check this <a href="http://regexr.com/395v5" rel="nofollow noreferrer">masterfull timestamp detector</a> regex I built to look for a user-specified timestamp, examples of what it will pickup include, but is most definitely NOT limited to;

<pre><code>8:30-9:40
09:40-09 : 50
09 : 40-09 : 50
09:40 - 09 : 50
08:00to05:00
08 : 00to05 : 00
08:00 to 05:00
8am-09pm
08h00 till 17h00
8pm-5am
08h00,21h00
06pm untill 9am
</code></pre>

It'll also pickup many more, as long as the times include digits

blocks|key|556215|text|请尝试以下操作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|556216|%5E([0-2][0-3]:[0-5][0-9])%7C(0?[0-9]:[0-5][0-9])$|code-block|syntax|javascript|556217|注意:我假设使用的是javascript+regex引擎。如果不是这样的话请告诉我。|556218|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Try the following

<pre><code>^([0-2][0-3]:[0-5][0-9])|(0?[0-9]:[0-5][0-9])$
</code></pre>

Note: I was assuming the javascript regex engine. If it's different than that please let me know.

blocks|key|772808|text|您可以使用以下正则表达式：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|772809|%5E[0-2]?[0-3]:[0-5][0-9]$|code-block|syntax|javascript|772810|我所做的唯一修改是最左边的数字是可选的。正则表达式的其余部分是相同的。|772811|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can use following regex :

<pre><code>^[0-2]?[0-3]:[0-5][0-9]$
</code></pre>

Only modification I have made is leftmost digit is optional. Rest of the regex is same.

I want a regexp for matching time in HH:MM format. Here's what I have, and it works:

<pre><code>^[0-2][0-3]:[0-5][0-9]$
</code></pre>

This matches everything from 00:00 to 23:59.

However, I want to change it so 0:00 and 1:00, etc are also matched as well as 00:00 and 01:30. I.e to make the leftmost digit optional, to match HH:MM as well as H:MM.

Any ideas how to make that change? I need this to work in javascript as well as php.

Regular expression for matching HH:MM time format

我想要一个匹配HH:MM格式的时间的regexp。这就是我所拥有的，并且它是有效的：^[0-2][0-3]:[0-5][0-9]$从00:00到23:59都匹配。但是，我想更改它，以便0:00和1:00等也匹配00:00和01:30。即使最左边的数字可选，以匹配HH:MM和H:MM。有什么想法可以改变这一点吗？我需要这在javascript以及php中工作。

问匹配HH:MM时间格式的正则表达式
EN

回答 15

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问匹配HH:MM时间格式的正则表达式EN

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问匹配HH:MM时间格式的正则表达式
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