Question: when did day light savings start in the us
[{'answer': 'March 19 , 1918'}, {'answer': '1918'}, {'answer': 'March 31 , 1918'}, {'answer': 'March 11'}, {}, {'provenance': [{'wikipedia_id': '16190896', 'title': 'Daylight saving time in the United States', 'section': 'Section::::History of DST in the United States.:1966–1972: Federal standard established.\n', 'start_paragraph_id': 10, 'end_paragraph_id': 10, 'meta': {'evidence_span': ['By 1962, the transportation industry found the lack of consistency confusing enough to push for federal regulation. The result was the Uniform Time Act of 1966 (P.L. 89-387). Beginning in 1967, the act mandated standard time within the established time zones and provided for advanced time: clocks would be advanced one hour beginning at 2:00\xa0a.m. on the last Sunday in April and turned back one hour at 2:00\xa0a.m. on the last Sunday in October. States were allowed to exempt themselves from DST as long as the entire state did so. If a state chose to observe DST, the time changes were required to begin and end on the established dates. In 1967, Arizona and Michigan became the first states to exempt themselves from DST (Michigan would begin observing DST in 1972). In 1972, the act was amended (P.L. 92-267), allowing those states split between time zones to exempt either the entire state or that part of the state lying within a different time zone. The newly created Department of Transportation (DOT) was given power to enforce the law. , the following states and territories are not observing DST: Arizona, Hawaii, American Samoa, Puerto Rico, and the Virgin Islands.', 'By 1962, the transportation industry found the lack of consistency confusing enough to push for federal regulation. The result was the Uniform Time Act of 1966 (P.L. 89-387). Beginning in 1967, the act mandated standard time within the established time zones and provided for advanced time: clocks would be advanced one hour beginning at 2:00\xa0a.m. on the last Sunday in April and turned back one hour at 2:00\xa0a.m. on the last Sunday in October. States were allowed to exempt themselves from DST as long as the entire state did so. If a state chose to observe DST, the time changes were required to begin and end on the established dates. In 1967, Arizona and Michigan became the first states to exempt themselves from DST (Michigan would begin observing DST in 1972). In 1972, the act was amended (P.L. 92-267), allowing those states split between time zones to exempt either the entire state or that part of the state lying within a different time zone. The newly created Department of Transportation (DOT) was given power to enforce the law. , the following states and territories are not observing DST: Arizona, Hawaii, American Samoa, Puerto Rico, and the Virgin Islands.', 'Beginning in 1967, the act mandated standard time within the established time zones and provided for advanced time: clocks would be advanced one hour beginning at 2:00\xa0a.m. on the last Sunday in April and turned back one hour at 2:00\xa0a.m. on the last Sunday in October. States were allowed to exempt themselves from DST as long as the entire state did so. If a state chose to observe DST, the time changes were required to begin and end on the established dates. In 1967, Arizona and Michigan became the first states to exempt themselves from DST (Michigan would begin observing DST in 1972). In 1972, the act was amended (P.L. 92-267), allowing those states split between time zones to exempt either the entire state or that part of the state lying within a different time zone. The newly created Department of Transportation (DOT) was given power to enforce the law. , the following states and territories are not observing DST: Arizona, Hawaii, American Samoa, Puerto Rico, and the Virgin Islands.']}}]}, {'provenance': [{'wikipedia_id': '480675', 'title': 'History of time in the United States', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ["The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones. Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler's window). The new standard time system was not immediately embraced by all. Use of standard time gradually increased because of its obvious practical advantages for", "The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones. Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler's window). The new standard time system was not immediately embraced by all. Use of standard time gradually increased because of its obvious practical advantages for", "The history of standard time in the United States began November 18, 1883, when United States and Canadian railroads instituted standard time in time zones. Before then, time of day was a local matter, and most cities and towns used some form of local solar time, maintained by some well-known clock (for example, on a church steeple or in a jeweler's window). The new standard time system was not immediately embraced by all. Use of standard time gradually increased because of its obvious practical advantages for"]}}]}, {'provenance': [{'wikipedia_id': '607033', 'title': 'Excise tax in the United States', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Excise tax in the United States is an indirect tax on listed items. Excise taxes can be and are made by federal, state and local governments and are not uniform throughout the United States. Some excise taxes are collected from the producer or retailer and not paid directly by the consumer, and as such often remain "hidden" in the price of a product or service, rather than being listed separately.', 'Excise tax in the United States is an indirect tax on listed items. Excise taxes can be and are made by federal, state and local governments and are not uniform throughout the United States. Some excise taxes are collected from the producer or retailer and not paid directly by the consumer, and as such often remain "hidden" in the price of a product or service, rather than being listed separately.\rhighlight sentence(s) containing evidence, not only the answer', 'Excise tax in the United States is an indirect tax on listed items. Excise taxes can be and are made by federal, state and local governments and are not uniform throughout the United States. Some excise taxes are collected from the producer or retailer and not paid directly by the consumer, and as such often remain "hidden" in the price of a product or service, rather than being listed separately.']}}]}]