Hexadecimal time
The hexadecimal time is a representation of the time as a hexadecimal number in the interval [0.1). This numerical value indicates directly which part of the day has already passed, i.e. identifies midnight with .0000 , noon with .8000 (one half) and the moment before the next midnight with , FFFF ( period of fifteen ; what in the decimal system is the Period of nine is).
Such a time calculation with sixteen hours per day was proposed as early as 1863 by the Swedish-American engineer John W. Nystrom (1825–1885). In the practice of time measurement , this representation could not prevail over the sexagesimal system in everyday life and the decimal time in science ( Julian date ).
Timing
When measuring time with hexadecimal time, the day is divided into 10 hex (= sixteen) hexadecimal hours. Each of these hours then has 100 hex (= two hundred and fifty- six) hexadecimal minutes and each hexadecimal minute has 10 hex (= sixteen) hexadecimal seconds. These terms facilitate the comparison with the traditional time, but should not hide the fact that it is simply the first to fourth decimal places of a hexadecimal number.
01:30:00 = , 1000 (1.5 ÷ 24 = 1 ÷ 16 = 0.1 )
12:00:00 = , 8000 (12 ÷ 24 = 8 ÷ 16 = 0.8 )
22:30:00 = , F000 (22.5 ÷ 24 = 15 ÷ 16 = 0, F )
1 day | = | 1 | . | 0 | 0 | 0 | 0 | hex | = | 6th | 5 | . | 5 | 3 | 6th | hexsec | = | 24 hours | |||||||||
1 hexadecimal hour | = | 1 | 0 | 0 | 0 | hex | = | 4th | . | 0 | 9 | 6th | hexsec | = | 1 h 30 min | ||||||||||||
1 hexadecimal maxim | = | 1 | 0 | 0 | hex | = | 2 | 5 | 6th | hexsec | = | 5 min 37.5 sec | |||||||||||||||
1 hexadecimal minute | = | 1 | 0 | hex | = | 1 | 6th | hexsec | ≈ | 21.09 sec | |||||||||||||||||
1 hexadecimal second | = | 1 | hex | = | 1 | hexsec | ≈ | 1.32 sec |
Individual evidence
- ↑ Published in 1863 in the Franklin Institute Journal №46, Philadelphia.
Web links
Examples of hexadecimal clocks:
- Hexadecimal clock (Mark Rogers) , local time, digital representation
- Hexadecimal clock (Steffen Eitner) , Florentine local time