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.
Trench Warfare. Trench warfare is a type of fighting where both sides build deep trenches as a defense against the enemy. These trenches can stretch for many miles and make it nearly impossible for one side to advance. During World War I, the western front in France was fought using trench warfare.