codeigniter get time zone offset

i need to get the timezone offset value from the timezone data in codeigniter. Timezones i have are UM12, UM11, .... UTC.... UP10 UP11 UP12..... i need exact offset values. is there any direct method?

From stackoverflow

• $this->load->helper('date');

  echo timezone('UM10'); //  will give -10
  

  or try

  print_r(timezone()); // List the entire timezone array
  

  Hope this will help ;)

  Akhil K Nambiar : thanks @vimal....