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http://dx.doi.org/10.5140/JASS.2009.26.3.329

A Study on the Optimal Duration of Daylight Saving Time (DST) in Korea  

Mihn, Byeong-Hee (Korea Astronomy and Space Science Institute)
Ahn, Young-Sook (Korea Astronomy and Space Science Institute)
Kim, Dong-Bin (Dept. of Astronomy & Space Science, Chungbuk National University)
Yang, Hong-Jin (Korea Astronomy and Space Science Institute)
Publication Information
Journal of Astronomy and Space Sciences / v.26, no.3, 2009 , pp. 329-344 More about this Journal
Abstract
Daylight saving time aims at spending effective daylight in summer season. Korea had enforced daylight saving time twelve times from 1948 to 1988. Since 1988, it is not executed, but it is recently discussed the resumption of DST. In this paper, we investigate the trend of DST in other countries, review the history of DST in Korea, and suggest the optimal DST duration in terms of astronomical aspects (times of sunrise and sunset). We find that the starting day of DST in Korea is apt for the second Sunday in Mayor the second Sunday in April according to the time of sunrise or to the difference between Korean standard meridian and observer's, respectively. We also discuss time friction that might be caused by time difference between DST and Korea Standard Time (KST).
Keywords
daylight saving time; summer time; time friction;
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  • Reference
1 이은성 1985, 역법의 원리분석(서울:정음사),p.78
2 Bartky, I. R. & Harrison, E. 1979, Scientific American, 240, 36   DOI
3 de Carle, D. 1947, British Time (Lonson: Crosby Lockwood & Son Ltd.), pp.152-157
4 Goodman, N. G. 1931, The Ingenious Dr. Franklin: Selected Scientifec Letters of Benjamin Franklin (Pennsylvania: University of Pennsylvania Press), pp.17-22