Notice how the entire map is yellow indicating all of Montana is officially in the Mountain Time Zone. Daylight Saving Time All of Montana observes daylight saving time (DST). Daylight saving time (DST) schedule: â At 2 AM local time, clocks are advanced 1 hour on the second Sunday in March. â At 2 AM local time, clocks go back 1 hour on the first Sunday in November.
A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole). In geology, trenches are created as a result of erosion by rivers or by geological movement of tectonic plates. In the civil engineering field, trenches are often created to install underground infrastructure or utilities (such as gas mains, water mains or telephone lines), or later to access these installations. Trenches have also often been dug for military defensive purposes.
Ocean trenches are deep sections of the ocean where an oceanic plate is usually sinking below a continental plate. Some example of ocean trenches.