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plural centidays
One hundredth of one day; that is, 14 minutes and 24 seconds. quotations examples
ABC's This Day Tonight in Adelaide proudly broke the news on 1 April 1975 that metric time was being introduced to Australia. The new metric time system would see seconds become millidays, minutes become centidays, and hours become decidays.
2008, unknown editor, Talking television.au: There's an April fool born every centiday, blog posting on 31st March 2008