Breaking up and averaging time

[coolbeansdude51]

I have an array of UTC times. Lets say its:

 

10:52:48

13:52:27

09:12:37

10:32:34

09:12:21

13:20:12

 

I need to find the average of the hours. I am trying to do a couple of things.

 

1.  Find the average

2.  Find out how many times that specific hour is in the array

3.  Convert that UTC hour, second, microsecond to the users specific timezone.

 

I am thinking something like this.  I haven't fixed it for an array as of yet.

 

$broken_time=explode(':','10:52:48');
$time=date('H:i:s',mktime(-6+$broken_time[0],0+$broken_time[1],0+$broken_time[2],0,0,0));
echo $time;

 

Any ideas?