Clinton, Montana is located in the Mountain Time Zone, which means that the time is Mountain Standard Time (MST) during regular time
and Mountain Daylight Time (MDT) when daylight savings is in effect.
  
Mountain Standard Time 
When it is Mountain Standard Time, Clinton, Montana is UTC-07:00 which means that it is -7 hours offset from 
Coordinated  Universal Time (UTC).
  
The Mountain Standard Time in Clinton, Montana (UTC-07:00) is shown in blue below:
  
 
  
Mountain Daylight Time 
When it is Mountain Daylight Time, Clinton, Montana will be UTC-06:00 which means that it is -6 hours 
offset from Coordinated Universal Time (UTC) and the time will be as follows in green:
  
 
 
As you can see, the difference between MST and MDT in Clinton, Montana is one hour, because the daylight savings is
adjusted by one hour.
  
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