Dates and Time Concepts

Create Date

DateTimeImmutable represents a date or time without changing the original object.

Create Date

create_date.php 
<?php
$day = ;
$date = new DateTimeImmutable($day, new DateTimeZone("UTC"));
$label = $date->format("Y-m-d");

echo "day=" . $day . "\n";
echo "label=" . $label . "\n";

<?php
$day = ;
$date = new DateTimeImmutable($day, new DateTimeZone("UTC"));
$label = $date->format("Y-m-d");

echo "day=" . $day . "\n";
echo "label=" . $label . "\n";

<?php
$day = ;
$date = new DateTimeImmutable($day, new DateTimeZone("UTC"));
$label = $date->format("Y-m-d");

echo "day=" . $day . "\n";
echo "label=" . $label . "\n";
fixed date Use fixed input dates in examples so replay is deterministic.