Daylight-saving time, hearings before subcommittee, 77th Congress, 1st session, on H. R. 5343, to promote national defense and conservation of electrical energy by permitting establishment of daylight-saving time (also on H. R. 3789, H. R. 4206 H. R. 4522, H. R. 5088, and H. R. 5219), Aug. 5-7, 1941.

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