- "Time in India," The Pioneer, June 18, 1899, 7.
- BL APAC IOR P/5664, Proceedings of the Department of Revenue and Agriculture, 1899; Meteorology, memorandum, On Time in India: A Suggestion for Its Improvement. By R. D. Oldham, Superintendent, Geological Survey of India.
- BL APAC IOR P/5664, Notes from the Council of the Royal Geographical Society on the Subject of a "Standard Time" for all India.
- BL APAC IOR P/5664, GOI, Proceedings of the Department of Revenue and Agriculture, 1899; Meteorology, memorandum, On Time in India: A Suggestion for Its Improvement. By R. D. Oldham, Superintendent, Geological Survey of India.
- BL APAC IOR P/5664, Proceedings of the Department of Revenue and Agriculture, 1899; Meteorology, letter, George F. Hamilton, Secretary of State for India, Simla, August 10, 1899. 还可参看Hamilton to Asiatic Society, September 1, 1899, with similar reasons stated.
- BL APAC IOR P/6828, letter, John Eliot, Meteorological Reporter to Secretary to the Government of India, Simla, April 28, 1903.
- BL APAC IOR P/6828, letter, J. Wilson, Secretary to the Government of India, Simla, July 13, 1904.
- BL APAC IOR P/5664, GOI, Proceedings of the Department of Revenue and Agriculture, 1899. Meteorology, Note on a proposal for an Indian Standard Time, para. 5, 11.
- See, for example, a list of twenty- seven frms, provided by the Karachi Chamber: Report of the Karachi Chamber of Commerce for the Year Ending 31st December 1905, Presented at the Annual General Meeting Held on the
时间的全球史
184