The Mount Graham International Observatory operates in the Mountain Standard Time Zone year round.
Note all times below are shown as Standard Time -- during the Daylight Savings Time period -- the US and other areas
that observe DST will be incorrect. 

Local Time                                          

Eniwetok (GMT-12)                             
Samoa (GMT-11)                                
Hawaii Standard Time (GMT-10)      

Alaska (GMT-9)                                   
Pacific (GMT-8)                                   
Mountain (GMT-7)                               

Central Time (GMT-6)                         
Eastern Time (GMT-5)                        
Atlantic Time (GMT-4)                         

Brazilia (GMT-3)                                  
Mid-Atlantic (GMT-2)                          
Azores (GMT-1)                                   

Greenwich Mean Time (GMT)        

Rome (GMT +1)                                   
Israel (GMT +2)                                    
Moscow (GMT +3)                               

Baku (GMT +4)                                    
New Delhi (GMT +5)                           
Dhakar (GMT +6)                                

Bangkok (GMT +7)                             
Hong Kong (GMT +8)                         
Tokyo (GMT +9)                                  

Sydney (GMT +10)                              
Magadan (GMT +11)                          
Wellington (GMT +12)