Question

I have made this regex

 ^(00|0[0-9]|1[012]):[0-5][0-9]? ((a|p)m|(A|P)M)$

but the problem is it is accepting
00:00 am which i dont want to be like this
how to ignore?
I want time to be in this format
12:12 am
it should not be in this
00:21 am
I am using this code for validation

        private bool valtime()
    {
        Regex regex = new Regex("^(00|0[0-9]|1[012]):[0-5][0-9]? ((a|p)m|(A|P)M)$");
        if (regex.IsMatch(textBox1.Text))
        {
            return false;
        }
        else
        {
            return true;
        }
    }

Answer 1

You could use:

Regex.IsMatch(input, @"^(0[1-9]|1[0-2]):[0-5][0-9] [ap]m$", RegexOptions.IgnoreCase);