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# Topic: Decimal time

###### In the News (Thu 23 May 19)

 Decimal Time - Time Zones Uniform time scales, such as International Atomic Time (TAI) and Terrestrial Time (TT), are also historically based on GMT, but are not kept synchronized with the earth's rotation, and thus increasingly diverge from UT. Many representations of decimal time, such as Modified Julian Dates and astronomical calendar dates, use UT or uniform time scales. French decimal time used local true, or apparent, solar time, that is, 5 o'clock on a decimal clock occurred exactly at true noon, when the sun reached its highest point in the sky at the location of the observer, and 10 o'clock was at true midnight, midway between two successive high points. Alternately, one time of day might be used everywhere, and individuals and organizations could choose to adjust their own schedules according to when the sun shines in their part of the world, without changing the time of day. decimaltime.hynes.net /timezones.html   (737 words)

 The Old Lab6: Decimal Time   (Site not responding. Last check: 2007-10-14) Decimal time makes calculations easy by providing a serial number type notation for time, where a larger number always represents a later date. If decimal time were ever to be adopted as a global time system, it would solve a few other problems. In decimal time notation, there are 100 seconds in an minute, 100 minutes in an hour, 100 hours in a day and 100 days in a year. lab6.com /old/time.html   (1700 words)

 Decimal time - Wikipedia, the free encyclopedia Decimal time is the representation of the time of day using units which are decimally related. The most common use of decimal time of day is as fractional days used by scientists and computer programmers. The difference between metric time and decimal time is that metric time defines units for measuring time interval, as measured with a stopwatch, and decimal time defines the time of day, as measured by a clock. en.wikipedia.org /wiki/Decimal_time   (1033 words)

 decimal time units The ancient Egyptians apparently used a decimal time system; we have been unable to find more information about it. A small hole allowed water to escape from the bottom of a jar and time was measured by noting marks on a stick floating vertically. The terms of the law of 4 frimaire year 2, which made use of the decimal division of the hour and its parts obligatory, are suspended indefinitely. www.sizes.com /time/decimal_time_units.htm   (897 words)

 A Guide To Metric Time   (Site not responding. Last check: 2007-10-14) Most proposed day-based decimalized time systems are basically the same in that one tenth of a day is one tenth of a day for all of them. The SI second is defined as the period of time that it takes a specific number of cesium isotope radiation emissions to occur such that it is as close to a mean ABT second (1/86400 day) as feasible given the variance of the earth's rotation. The SI second is already used as a decimalized unit in science and engineering, so why not use the SI second as the time unit for technical purposes and the SI day as the unit for clock keeping and day-to-day use (timing boiled eggs and such). zapatopi.net /metrictime.html   (2483 words)

 Aristean Time Zone Following the Aristean Decimal Time where a day is 100 aristos long, the day starts at the present 6:00pm instead of midnight. A time zone has 5 aristos and is equivalent to the present 1 hour and 12 minutes. This will have the reference time, military and aviation (may be called as Alpha time to avoid being confused with Zulu time) and astronomical (decimal part of the Julian-Aristean Time (JAT)) times. www.geocities.com /peacecrusader888/timezone.htm   (399 words)

 Time interval and stopwatch meter Multiple integral time intervals are averaged over a gate time which is selectable from 10 ms to 199.99 s and also controls the display update time. Time can be measured between a start pulse and a stop pulse, both on Channel A, from either the positive or negative edges. Time can also be measured between a start pulse on Channel A (positive or negative edge) and a stop pulse on Channel B (positive or negative edge). www.flw.com /laurel/timer.htm   (1001 words)

 Metric time - Wikipedia, the free encyclopedia Base units equivalent to decimal divisions of the day, such as 1/10, 1/100, 1/1000, or 1/100,000 day, or other divisions of the day, such as 1/20 or 1/40 day, have also been proposed, with names such as tick, meck, chi, chron, moment, etc., and multiple and submultiple units formed with metric prefixes. Metric time is sometimes used to mean decimal time. Other decimal time standards, such as Swatch Internet Time, are not considered metric time. en.wikipedia.org /wiki/Metric_time   (728 words)

 The other solution As far as I know, time is the only case of measurement where we are given two units with a rational relationship by nature, as part of the premise. Using an average decimal calculator as a model, the size of the keyboard would be about 10x30 centimeters, perhaps larger, since the trecentisexagintapentimal signs are somewhat more complex than their decimal counterparts. In these times when oil prices are increasing, computers are becoming faster and faster, average global temperatures are steadily rising, and people are getting fatter at an exponential rate, it is foresighted to switch even now to a numerical system that can express large numbers with fewer signs. kronocide.com /tentime/the_other_solution.shtml   (1335 words)

 Ruby edt EDT is a command-line application to display time in decimal format, and to convert from standard time to decimal time. EDT is decimal time based on the Earth's rotation about its axis and around the sun. Decimal time is very practical, as decimal math is the easiest math for most people to perform. www.germane-software.com /software/edt   (1084 words)

 Flowtime:_a_form_of_decimal_time Decimal systems are very intuitive because we have ten fingers, and people find counting to ten on their fingers to be very intuitive. The proposal for decimal time is to switch the counting of minutes and seconds from sixty divisions to 100 divisions. Of course, the duration of 45 regular time minutes is the same as the duration of 75 flowtime minutes, but psychologically you will work faster if you compress the amount of time you allow yourself to do a project. www.flowresearch.com /Flowtime/flowtime.htm   (1570 words)

 Decimal Time - Home Page Our current civil time is based mostly on the numbers "12" and "60", dating back to the duodecimal and sexagesimal systems used by the ancient Babylonians, instead of the decimal systems of time used in China. It is difficult to make time calculations involving standard units, which is why scientists and computer programmers convert dates and times to decimal time units. Fractional days are decimal times of day expressed as a decimal fraction, obtained by dividing the number of hours by 24, which are added to decimal dates and other dates by astronomers and computer programmers www.decimaltime.hynes.net   (280 words)

 Performance In applications requiring the processing of a large volume of inherently decimal input and output data, the time for decimal-binary conversion needed by a purely binary computer may be significant. Decimal multipliers, which are synthesized using a 0.11 micron CMOS standard cell library, operate at clock frequencies close to 2 GHz. Although computers are still carrying out decimal calculation using software libraries and binary floating-point numbers, it is likely that in the near future, all processors will be equipped with units performing decimal operations directly on decimal operands. www2.hursley.ibm.com /decimal/decbibperformance.html   (1580 words)

 Decimal time plans This is time, God dammit, it's bigger than all of us!"), a new set of base units to replace seconds, minutes and hours ("First you have to have consistency, after that everything else falls into place. In 1998 the proposal finally went through the Board of Chronos, a semi-elected board of 'Time Lords', and entered the House of Commons as the Decimal Time Act. The new time scale will run concurrently with 'classic' time for the next four (old) years, during which the old system will be gradually phased out. members.tripod.com /~dystopian_society/page81.html   (564 words)

 [No title]   (Site not responding. Last check: 2007-10-14) The French also devised a decimal time system contemporary with the metric system; however, the time system was politically motivated and was eventually abandoned. Currently, the second is defined to be 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom, at rest at a temperature of 0 K. A number of modern decimal time systems have been proposed. To be precise, let the base time unit be the duration of 19 856 085 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom, at rest at a temperature of 0 K. I propose calling this unit the tick (t). www.zianet.com /egghead/time.html   (1006 words)

 Decimal time The proposals regarding the decimalisation of time and angle did not catch on at all, although the calendar continued to be used until 1 January 1806 when the French calendar reverted to the old style. The metric system succeeded because it was the simplest and it put an end to a veritable incoherence in local measures; the decimalisation of time and circumference failed because the whole world employed the same measures and the proposals sinned precisely because of their lack of unity. Of course there is a strong connection between time and angle since the earth rotates through the circumference of a circle in a day, in fact in 10 grads per hour with these units. www-history.mcs.st-andrews.ac.uk /HistTopics/Decimal_time.html   (1413 words)

 Metritime Metritime can be made into a universal time (the same time everywhere) by basing it on Greenwich mean time, and prefixing it with a ∞ symbol (infinity). The time is based on the time at the company headquarters instead of Greenwich, UK which further confuses things. Metric time - again similar, but the basic unit is a day, which is then divided up into 10ths of units - namely decidays (1/10 day = 1 hectomo), centidays (1/100 day = 1 dekamo), millidays (1/1000 day = 1 mo). scripts.currawong.net /Metritime   (1551 words)

 Decimal Time - Computers Time before this is represented as a negative number. Unix time, by itself, does not qualify as either a date or time of day, because it neither counts days, nor repeats them, but rather is intended to be used to convert back and forth between different date/time formats Microsoft Excel is a spreadsheet program which uses a "serial value" count of days to store both dates and time of day. www.decimaltime.hynes.net /computers.html   (526 words)

 Time Time is like a river made up of the events which happen, and its current is strong; no sooner does anything appear than it is swept away, and another comes in its place, and will be swept away too. Time in the former sense, as used in physics, is measured with a stopwatch or an interval timer, while time in the latter sense is determined with a wristwatch or clock. When the quantity called time appears in a physical equation, it is always referring to the measure of the interval between two events. hypertextbook.com /physics/foundations/time   (3277 words)

 [No title] Binary Coded Decimal (often shortened to BCD) is a method of representing base ten (decimal) numbers using binary (base two) codes. Binary Coded Decimal (BCD) is a type of numerical representation wherein each digit of a decimal number is represented by a four-digit binary number. The time code presents UTC information in serial fashion at a rate of 1 pulse per second. www.lycos.com /info/binary-coded-decimal.html   (522 words)

 Dials & Symbols of the French revolution and the Republican Calendar & Decimal time.   (Site not responding. Last check: 2007-10-14) The rooster has been used as an ornament on church bell towers in France since the early Middle Ages, but at that time it was probably used to symbolize vigilance as roosters are known to crow at the expectation of the sunrise. Decimal or Revolutionary time was adopted by decree of the National Convention in 1793. By 1795 it was no longer compulsory to use Decimal time and even before then clocks and watches were being made with both the 'old' and 'new' systems as on the example below. www.antique-horology.org /_Editorial/RepublicanCalendar   (1238 words)

 TIME   (Site not responding. Last check: 2007-10-14) Returns the decimal number for a particular time. The decimal number returned by TIME is a value ranging from 0 (zero) to 0.99999999, representing the times from 0:00:00 (12:00:00 AM) to 23:59:59 (11:59:59 P.M.). Time values are a portion of a date value and represented by a decimal number (for example, 12:00 PM is represented as 0.5 because it is half of a day). www.nv.doe.gov /_vti_bin/help/1033/sts/html/ltime.htm   (193 words)

 A Guide To Metric Time: Links   (Site not responding. Last check: 2007-10-14) Aristean Decimal Time - "New time system in decimal format covering the duration or elapsed time issue, and the clock time or time of day issue." Uses "aristo" for centidays and starts the day at sundown (18:00 ABT). Martian Time - Proposal for decimalized time system (and others) and calendar to be used by martian colonists. Metric Time - This one uses a unit called a "tick" which is based on the solar year. zapatopi.net /metrictime/link.html   (1114 words)

 Telephone incorporating binary coded decimal time display - Patent Review 3943288   (Site not responding. Last check: 2007-10-14) First, the time readout and display is continuous, so that the user of the telephone does not have to dial a number to obtain the correct time. Another object of the invention is the provision of a clock having a time display incorporating light emitting diodes in the push buttons for the display of time in binary form. This coincidence counter therefore compares the preset time in the alarm circuit 50 to the actual time in the counters, and when these times coincide, an output is provided on line 62 to cause the telephone to ring. www.wikipatents.com /3943288.html   (3472 words)

 Convert Between Hours Minutes & Seconds and Decimal Time In today's decimal world, often there is the need to convert between "standard" hours, minutes & seconds and decimal time. This can be particularly useful in the workplace where clocking in (and out) machines are used, many of which use decimal time. The atomic clock is so accurate that if it was left unadjusted, it would eventually drift away from the less precise solar time, in a similar way to how the seasons would drift away from the solar year if no leap years existed. www.springfrog.com /converter/decimal-time.htm   (652 words)

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