title: PHP Combine Date and Time fields to form DateTime
body: <p>I have 3 separate fields:</p>
  
  <pre><code>// date object in the format yyyy-mm-dd
  $service_1_date 
  
  // time object in the format 00:00:00
  $booking-&gt;service_1_time_start
  
  // time object in the format 00:00:00
  $booking-&gt;service_1_time_end
  </code></pre>
  
  <p>I have set these up as separate fields because I manipulate them separately in my application.</p>
  
  <p>However as I am creating a Google Calendar event I must pass a datetime object as one value like this:</p>
  
  <pre><code>Event::create([
             'name' =&gt; 'New Booking',
             'startDateTime' =&gt; '',
             'endDateTime' =&gt; '',
          ]);
  </code></pre>
  
  <p>In order for me to pass the <code>startDateTime</code> and <code>endDateTime</code> parameters I must first combine my date and time objects. So my question is how do I combine my date and time objects to make it into one datetime object?</p>
  
  <blockquote>
    <p>it is expecting an instance of Carbon</p>
  </blockquote>