title: PHP date ISO 8601 date Timezone
body: <p>I have this date returned from payment gateway</p>
  
  <pre><code>2014-05-15T08:40:52+01:00
  </code></pre>
  
  <p>I got 2014-05-15T08:40:52 but i am unable to identify meaning of timezone <code>+01:00</code></p>
  
  <p>My location timezone is UTC−06:00 (CT)</p>
  
  <p>Servers location time zone is UTC−02:00</p>
  
  <p>My payment gateway time zone UTC−05:00 (EST) </p>
  
  <p>What is the meaning of <code>+01:00</code> after adding/without adding it to my timezones? How can i tell to my website user that he/she successfully completed payment process at XX date and Time...</p>