Sets the timezone, and checks current time to see if it lies between a start and ending range.

PHP If Date is Between.php

<?php
date_default_timezone_set('america/chicago');

$currentDayTime = new DateTime(); // Get Today's Date/Time
echo $currentDayTime->format('m-d-Y H:i') . "<br>";

$startDateTime = new DateTime('2020-01-15');
$startDateTime->setTime(8, 00);

echo $startDateTime->format('m-d-Y H:i') . "<br>";

$endDateTime = new DateTime('2020-01-15');
$endDateTime->setTime(10, 26);
echo $endDateTime->format('m-d-Y H:i') . "<br>";

if (($currentDayTime >= $startDateTime) && ($currentDayTime <= $endDateTime)){
    echo "<h1>LETS DO STUFF</h1>";
}else{
    echo "Date not in range";
}
?>