El tiempo en php

el tiempo en php

<?php
$apiKey = "API KEY";
$cityId = "CITY ID";
$googleApiUrl = "http://api.openweathermap.org/data/2.5/weather?id=" . $cityId . "&lang=en&units=metric&APPID=" . $apiKey;

$ch = curl_init();

curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $googleApiUrl);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_VERBOSE, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$response = curl_exec($ch);

curl_close($ch);
$data = json_decode($response);
$currentTime = time();
?>