12-Hour Time with AM/PM

const re = new RegExp("(?:0?[1-9]|1[0-2]):[0-5]\\d(?::[0-5]\\d)?\\s?[AaPp][Mm]", "g");
const input = "9:30 AM";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

import re

pattern = re.compile(r"(?:0?[1-9]|1[0-2]):[0-5]\d(?::[0-5]\d)?\s?[AaPp][Mm]")
input_text = "9:30 AM"
for m in pattern.finditer(input_text):
    print(m.group(0))

package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`(?:0?[1-9]|1[0-2]):[0-5]\d(?::[0-5]\d)?\s?[AaPp][Mm]`)
	input := `9:30 AM`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}