Regex time pattern

I have the following time pattern:

// The pattern of times that accepts moments between 09:00 to 17:59
    var TIME_PATTERN = /^(09|1[0-7]{1}):[0-5]{1}[0-9]{1}$/;

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I need to modify the patter so it accepts  between 00:00 am and 11:59 pm  (so pretty much any time)
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I'm curious why you have the {1} counts inserted there. It seems to me they could be omitted.

var TIME_PATTERN=/^((1[01])|(0[0-9])):[0-5][0-9]$/;

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That assumes you aren't going to run into 24-hour time with hours 12-23. In that case, you'd want something more like:

var TIME_PATTERN=/^((2[0-3])|([01][0-9])):[0-5][0-9]$/;

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AleksAuthor Commented:
I actually need it to allow any times entered, from 00 in the morning to 11:59 at night.
Would the above work in that case ?

About the {1} counts I would rather leave them there, this is for a jquery forms validation and perhaps it needs it, not that familiar with it.
In your example, you had 17:59, expressed as 24-hour time. So my second expression should work for you. The time 11:59 is still morning in this notation.

As for the {1} counts, you only applied them to some of the atoms, and their meaning is exactly the same as leaving them out.

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AleksAuthor Commented:
This is correct !  Works great thank you  !
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