Question: when did the first country adopted time zones
[{'answer': 'Great Britain', 'provenance': [{'wikipedia_id': '30890', 'title': 'Time zone', 'start_paragraph_id': 11, 'start_character': 66, 'end_paragraph_id': 11, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::History.:Railway time.\n'}]}, {'provenance': [{'wikipedia_id': '30890', 'title': 'Time zone', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 599, 'bleu_score': 0.8990683797706661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7596309568332056956}, 'section': 'Section::::History.:Railway time.\n'}]}]