ISO 8601

The standard uses the Gregorian calendar, already the de facto standard of international trade. The standard acknowledges that other calendars may be used, such as the Julian calendar used by astronomers. It suggests that senders and receivers should explicitly agree when another calendar is used with the standard's notation. Dates are otherwise assumed to be Gregorian. In principle, dates should usually be converted to the proleptic Gregorian cal ...

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ISO 8601, ISO 8601 - History of the standard, ISO 8601 - General principles, ISO 8601 - Dates, ISO 8601 - Calendar date, ISO 8601 - Week dates, ISO 8601 - Ordinal dates, ISO 8601 - Further details about dates, ISO 8601 - Times, ISO 8601 - Time zones, ISO 8601 - Combined representations, ISO 8601 - Duration, ISO 8601 - Time interval, ISO 8601 - Repeating intervals, ISO 8601 - Usage

Read more here: » ISO 8601: Encyclopedia II - ISO 8601 - Dates

Continental Europeans use the hyphen to delineate parts within a written date. Germans and Slavs also used roman numerals for the month; 14‑vii‑1789, for example, is one way of writing the first Bastille Day, though this usage is rapidly falling out of favour. Plaques on the wall of the Moscow Kremlin are written this way. Usage of hyphens, as opposed to the slashes used in the English language, is specified for international standards. The International Standard ISO 8601, which was accepted by both the Germans as DIN 5008 ...

See also:

Hyphen, Hyphen - Rules and customs of usage, Hyphen - Examples of usage, Hyphen - Origin and history of the hyphen, Hyphen - Hyphens in computing, Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia II - International Standard dates

Some strong examples of semantic changes caused by the placement of hyphens: Disease causing poor nutrition, meaning a disease that causes poor nutrition, and Disease-causing poor nutrition, meaning poor nutrition that causes disease. A man-eating shark is a carnivorous fish, while a man eating shark is a carnivorous male human. New age-discrimination rules, meaning new rules regarding discrimination according to age, and New ...

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Hyphen, Hyphen - Rules and customs of usage, Hyphen - Examples of usage, Hyphen - Origin and history of the hyphen, Hyphen - Hyphens in computing, Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia II - Examples of usage

Traditionally, the hyphen has been used in several ways: Except for noun-noun and adverb-adjective compound modifiers, when a compound modifier appears before a term, the compound modifier is generally hyphenated in order to prevent any possible misunderstanding, such as light-blue paint, twentieth-century invention, cold-hearted person, and award-winning show. Without the hyphens, there is potential confusion about whether "light" applies to "blue" or "paint", whether "twentieth" applies to "c ...

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Hyphen, Hyphen - Rules and customs of usage, Hyphen - Examples of usage, Hyphen - Origin and history of the hyphen, Hyphen - Hyphens in computing, Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia II - Rules and customs of usage

In the ASCII character encoding, the hyphen was encoded as character 45. Technically, this character is called the hyphen-minus, as it is also used as the minus sign and for dashes. In Unicode, this same character is encoded as U+002D so that Unicode remains compatible with ASCII. However, Unicode also encodes the hyphen and minus separately, as U+2010 ( ‐ ) and U+2212 ( − ), respectively, along with a series of dashes. Usage of the hyphen-minus character is discouraged where possib ...

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Hyphen, Hyphen - Rules and customs of usage, Hyphen - Examples of usage, Hyphen - Origin and history of the hyphen, Hyphen - Hyphens in computing, Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia II - Hyphens in computing

In medieval times and the early days of printing, when fonts all resembled Old English, the predecessor of the comma was a slash. As the hyphen ought not to be confused with this, a double-slash was used, this resembling an equals sign tilted like a slash. Writing forms changed with time, and included the full development of the comma, so the hyphen could become one horizontal stroke. However, publishers of dictionaries liked that a tilted symbol would give them a little extra room in their books. Those dictionaries based on the secon ...

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Hyphen, Hyphen - Rules and customs of usage, Hyphen - Examples of usage, Hyphen - Origin and history of the hyphen, Hyphen - Hyphens in computing, Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia II - Origin and history of the hyphen

The 24-hour clock is a convention of time-keeping in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 23 (and 24 in the day-ending midnight). This system is the most commonly used time notation in the world of today. The United States is the only industrialized country left in which a substantial fraction of the population is not yet accustomed to it. The 24-hour notation is in the US and Canada also referred to as military time, and (now only rarely) in the United Kingdom as Including:

• 24-hour clock - Description
• 24-hour clock - Advantages
• 24-hour clock - Use by country
• 24-hour clock - United States
• 24-hour clock - United Kingdom
• 24-hour clock - Non-English speaking world
• 24-hour clock - The 24-hour clock in spoken English
• 24-hour clock - Psychological Effects
• 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia - 24-hour clock

Astronomical year numbering is based on AD/BC / CE/BCE year numbering, but follows normal decimal integer numbering more strictly. Thus, it has a year 0 and the years before that are designated with a minus sign '−'. The era designations BC/AD are dropped. So the year 1 BC(E) is numbered 0, the year 2 BC(E) is numbered −1, and in general the year n BC(E) is numbered (1−n). The numbers of AD/CE years are not changed, but AD/CE is not used, being replaced by either no sign or a positive sign. For normal calculation a ...

Read more here: » Astronomical year numbering: Encyclopedia - Astronomical year numbering

apostrophe ( ' ) ( ’ ) brackets ( ( ) ) ( [ ] ) ( { } ) ( 〈 〉 ) colon ( : ) comma ( , ) dashes ( ‒ ) ( – ) ( — ) ( ― ) ellipsis ( … ) ( ... ) exclamation mark ( ! ) full stop/period ( . ) hyphen ( - ) ( ‐ ) interrobang ( < ...

Including:

• Hyphen - Rules and customs of usage
• Hyphen - Examples of usage
• Hyphen - Origin and history of the hyphen
• Hyphen - Hyphens in computing
• Hyphen - International Standard dates

Read more here: » Hyphen: Encyclopedia - Hyphen

The 24-hour notation has many advantages over the 12-hour system: There is no possibility of ambiguity between times in the morning and evening (in the 12-hour system "seven o'clock" means both 7 am and 7 pm). In reading schedules and the like, it is easy to see at a glance whether times refer to before or after noon. This is especially important for organizations that run services 24 hours a day, such as airlines, railways, and the military. Displays that use the 12-hour system usually show noon as 12:00  ...

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24-hour clock, 24-hour clock - Description, 24-hour clock - Advantages, 24-hour clock - Use by country, 24-hour clock - United States, 24-hour clock - United Kingdom, 24-hour clock - Non-English speaking world, 24-hour clock - The 24-hour clock in spoken English, 24-hour clock - Psychological Effects, 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia II - 24-hour clock - Advantages

Canada - Mexico - South Africa - U.S. Rail Transport - Science - Sports Births - Deaths 1875 was a common year starting on Friday (see link for calendar). In the ISO 8601 calendar, 1875 is defined as the year the Convention du Mètre was originally signed, by way of a reference year. 1875 - Events. January 12 - Kwang-su becomes emperor of China. February 27 - Newton Booth, 11th Governor of California resigns, having been elected Senator. Lieutenant Governor ...

Including:

• 1875 - Events
• 1875 - May - August
• 1875 - September - December
• 1875 - Unknown date
• 1875 - Births
• 1875 - January
• 1875 - February
• 1875 - March
• 1875 - April
• 1875 - May
• 1875 - June
• 1875 - July
• 1875 - August
• 1875 - September
• 1875 - October
• 1875 - December
• 1875 - Deaths

Read more here: » 1875: Encyclopedia - 1875

In English the days of the week are: Sunday; Monday; Tuesday; Wednesday; Thursday; Friday; Saturday. Saturday and Sunday are commonly called the weekend and are days of rest and recreation in most western cultures. The other five days are then known as weekdays. Friday and Saturday are days of rest in Muslim and Jewish countries respectively, and in the Bible, from Friday sunset to Saturday sunset is the Sabbath. ...

Including:

• Days of the week - Order
• Days of the week - Modern ordering
• Days of the week - Calendrical origins
• Days of the week - Names
• Days of the week - Astronomical
• Days of the week - Numerical
• Days of the week - Notes
• Days of the week - Bibliography

Read more here: » Days of the week: Encyclopedia - Days of the week

The Gregorian calendar is the calendar that is used nearly everywhere in the world. A modification of the Julian calendar, it was first proposed by the Neapolitan doctor Aloysius Lilius, and was decreed by Pope Gregory XIII, for whom it was named, on 24 February 1582 (Note: The papal bull Inter gravissimas was signed in the year 1581 for unknown reasons, but printed on 1 March 1582. Although the use of the date 1581 is often attributed to the supposed adoption by the papacy of a reckoning by which the year began on 25 March, other contemporaneous papal bulls have years that do not agree with March years, let alo ...

Including:

• Gregorian calendar - History
• Gregorian calendar - Invention
• Gregorian calendar - Beginning of the year
• Gregorian calendar - Adoption outside of Roman Catholic nations
• Gregorian calendar - Proleptic Gregorian calendar
• Gregorian calendar - Confusion with British vs. American usage
• Gregorian calendar - Difference between Gregorian and Julian calendar dates
• Gregorian calendar - Months of the year
• Gregorian calendar - Accuracy
• Gregorian calendar - Calendar seasonal error
• Gregorian calendar - Numerical facts
• Gregorian calendar - Number of leap years starting on a given day of the week
• Gregorian calendar - Days of the week
• Gregorian calendar - Reference

Read more here: » Gregorian calendar: Encyclopedia - Gregorian calendar

Wednesday is considered either the third or the fourth day of the week, between Tuesday and Thursday. The name comes from the Old English Wodnesdæg meaning the day of the Germanic god Woden who was a god of the Anglo-Saxons in England until about the 7th C. AD. When Sunday is taken as the first of the week, the day in the middle of each week is Wednesday. Arising from this, the German name for Wednesday has been Mittwoch (literally: "mid-week") since the 10th Century, having displaced the former name: Wodanstag. According to the Bible, Wednesda ...

Including:

• Wednesday - Wednesday in popular culture
• Wednesday - Astrological Sign
• Wednesday - Named days

Read more here: » Wednesday: Encyclopedia - Wednesday

Unix time, or POSIX time, is a system for describing points in time. It is widely used not only on Unix-like operating systems but in many other computing systems, including the Java programming language. It is an encoding of UTC, and is sufficiently similar to a linear representation of the passage of time that it is frequently mistaken for one. The main complication is the leap seconds of UTC time. Unix time - Definition. There are two layers of encoding that make up Unix time, and they can be usef ...

Including:

• Unix time - Definition
• Unix time - Encoding time as a number
• Unix time - Representing the number
• Unix time - UTC basis
• Unix time - History
• Unix time - 32-bit overflow
• Unix time - time_t parties

Read more here: » Unix time: Encyclopedia - Unix time

The solar year does not have whole number of days, but a calendar year must have a whole number of days. The only way to reconcile the two is to vary the number of days in the calendar year. In many calendars, this is done by adding to a common year of 365 days, an extra day (leap day or intercalary day): this makes a leap year of 366 days. In the Gregorian calendar, the intercalary day is February 29. The solar year does not have a whole number of lunar months either, so a lunisolar calendar must have a variable ...

Read more here: » Intercalation: Encyclopedia - Intercalation

The time 18:30 is usually pronounced "eighteen thirty". In U.S. military usage, this is often followed by the word "hours", to clarify that the speaker is referring to a time of day. Conventions differ slightly for full hours, but both "eighteen o'clock" and "eighteen hundred" are commonly encountered spoken English for 18:00, with "eighteen hundred hours" being the standard U.S. military usage. The time 18:05 is commonly pronounced either "eighteen oh five" or "five past eighteen". In U.S. military usage, a leading zero for the hours before 10:00 is pronounced as well, as in "oh three oh five hours" f ...

See also:

24-hour clock, 24-hour clock - Description, 24-hour clock - Advantages, 24-hour clock - Use by country, 24-hour clock - United States, 24-hour clock - United Kingdom, 24-hour clock - Non-English speaking world, 24-hour clock - The 24-hour clock in spoken English, 24-hour clock - Psychological Effects, 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia II - 24-hour clock - The 24-hour clock in spoken English

24-hour clock - United States. The United States differs from other countries in that a significant fraction of its population may not yet be familiar with the 24-hour time notation. The 12-hour notation is the by far dominant time notation in the U.S., and the 24-hour notation is rarely used so far in public communication. The 24-hour notation is most well known in the U.S. for its use by the military, where it is traditionally written without a colon (1800 instead of 18:00) and in spoken language followed by th ...

See also:

24-hour clock, 24-hour clock - Description, 24-hour clock - Advantages, 24-hour clock - Use by country, 24-hour clock - United States, 24-hour clock - United Kingdom, 24-hour clock - Non-English speaking world, 24-hour clock - The 24-hour clock in spoken English, 24-hour clock - Psychological Effects, 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia II - 24-hour clock - Use by country

A time in the 24-hour notation is written in the form hours:minutes (for example, 01:23), or hours:minutes:seconds (01:23:45). A leading zero is added for numbers under 10. This zero is optional for the hours, but very commonly used, especially in computer applications, where many specifications require it (for example, ISO 8601). Where subsecond resolution is required, the seconds can be a decimal fraction, that is the fractional part follows a decimal dot or comma, as in 01:23:45.678. In the 24-hour time notation, the day begins at midnigh ...

See also:

24-hour clock, 24-hour clock - Description, 24-hour clock - Advantages, 24-hour clock - Use by country, 24-hour clock - United States, 24-hour clock - United Kingdom, 24-hour clock - Non-English speaking world, 24-hour clock - The 24-hour clock in spoken English, 24-hour clock - Psychological Effects, 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia II - 24-hour clock - Description

In most countries, computers by default show the time in 24-hour notation. The 12-hour notation is typically set by default if a computer's language and region settings are: Albanian English (United States, Canada, South Africa, Zimbabwe, Australia, New Zealand, Philippines, Belize, Trinidad, Jamaica, Caribbean) Greek Spanish (Mexico, parts of South America) Swahili Usually, users can easily switch to the 24-hour notation in such locales, without affecting any of the other region ...

See also:

24-hour clock, 24-hour clock - Description, 24-hour clock - Advantages, 24-hour clock - Use by country, 24-hour clock - United States, 24-hour clock - United Kingdom, 24-hour clock - Non-English speaking world, 24-hour clock - The 24-hour clock in spoken English, 24-hour clock - Psychological Effects, 24-hour clock - Computer support

Read more here: » 24-hour clock: Encyclopedia II - 24-hour clock - Computer support