Question: when does daylight savings time start in usa
[{'answer': 'the second Sunday in March', 'provenance': [{'wikipedia_id': '16190896', 'title': 'Daylight saving time in the United States', 'start_paragraph_id': 2, 'start_character': 44, 'end_paragraph_id': 2, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '16190896', 'title': 'Daylight saving time in the United States', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 498, 'bleu_score': 0.7607756097519731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5636839817144515021}, 'section': 'Section::::Abstract.'}]}]