如何在PHP中将本地时间转换为UTC

Question

I have a local time 09:45 AM . How can i convert it into UTC format. I tried something like this gmdate('Ymd H:i:s', $busSchedule->end_time); Here $busSchedule->end_time contains the local time. But it gave me an error

A non well formed numeric value encountered

Answer 1

Try this

<?php
    $end_date_time = date("Y-m-d")." ".$busSchedule->end_time;
    echo $current_date_time = date("Y-m-d H:i:s A",strtotime($end_date_time));
    echo "<br>";
    echo $utc_date_time = gmdate("Y-m-d H:i:s A",strtotime($current_date_time));
?>