In navigational contexts, the bearing must be stated as 3 digits: not so in other contexts. For maritime and aviation applications, the clock bearing is almost always a relative bearing ; i. However, if the position is associated with a true bearing, then the observed position is also. For example, clock position on a hour analog watch can be used to find the approximate bearing of true north or south on a day clear enough for the sun to cast a shadow.
The technique takes a line of sight LOS on the visible sun, or on the direction pointed to by a shadow stick, through the hour hand of the watch.
It exploits the one true bearing of the sun in its course across the sky: the LOS from the observer to the zenith of its course. There the sun is seen mid-way between sunrise and sunset. A vertical plane including sun and observer is perpendicular to the plane of the sun's course.
Its intersection with the surface of the earth is a meridian , a line passing through a geographical pole. If the sun is in the southern half of the sky, the zenith bearing points true south; if northern, north. The time at that moment is P. The clock position to the observer is If the watch is set to uncorrected solar time, both hands point to the sun. In a hour watch, the sun and the hour hand both advance, but not at the same rate; the sun covers 15 degrees per hour, and watch To keep the hour hand on the sun, must recede from the zenith at the same rate the hour hand advances.
On a hour watch , the sun and the hour hand advance at the same rate. There is no need to half the angle. The zenith LOS is only an approximation due to changes in the time kept by the watch.
That time is based on mean solar time rather than observed solar time. Also, time changes with longitude, and the institution of daylight saving time. The time generally available for watch settings in the observer's region is called civil time. It can be corrected to solar time, but LOS on a watch is generally too imprecise to make the trouble worth the effort. In World War II aircraft pilots needed a quick method of communicating the relative position of threats, for which the clock system was ideal.
The gunners of a bomber, or the other aircraft in the squadron, had to be kept informed for purposes of immediate response. However, in aviation , a clock position refers to a horizontal direction. The pilots needed a vertical dimension, so they supplemented the clock position with the word high or low to describe the vertical direction; e.
The horizon line was only visible in clear weather in daylight, and was only useful as a reference line in straight and level flight, when it appeared on the nose of the aircraft. The vocabulary therefore was only of use during daylight patrols or missions. The reference line and reference clock positions did not exist during combat aerobatics, at night, or during cloudy weather, when other means had to be found for locating the combatants, such as radar. In , J. Plato devised a clock system to identify farms around reference points in rural areas.
A clock face was imagined centered on a rural community with pointing true north. The circle was divided into concentric numbered bands at each mile of radius. The terms "a. Depending on the style guide referenced, the abbreviations "a. Some stylebooks suggest the use of a space between the number and the a. In many instances using the hour clock, there is no separator between hours and minutes , read as written, i.
They are meant to be used only with Chinese-Japanese-Korean character sets, as they take up exactly the same space as one CJK character. Minutes past the hour means those minutes are added to the hour; "ten past five" means Minutes to, 'til and of the hour mean those minutes are subtracted; "ten of five", "ten 'til five", and "ten to five" all mean Fifteen minutes is often called a quarter hour , and thirty minutes is a half hour.
For example, can be phrased " a quarter past five" or "five-fifteen"; can be "half past five", "five-thirty" or simply "half five". The time may be spoken as "eight forty-five" or " a quarter to nine". Instead of meaning , the "half five" expression is sometimes used to mean , or "half-way to five", especially for regions such as the American Midwest and other areas that have been particularly influenced by German culture.
Moreover, in situations where the relevant hour is obvious or has been recently mentioned, a speaker might omit the hour and just say "quarter to the hour ", "half past" or "ten 'til" to avoid an elaborate sentence in informal conversations.
These forms are often commonly used in television and radio broadcasts that cover multiple time zones at one-hour intervals. In describing a vague time of day, a speaker might say the phrase "seven-thirty, eight" to mean sometime around or Such phrasing can be misinterpreted for a specific time of day here , especially by a listener not expecting an estimation. The phrase " about seven-thirty or eight" clarifies this.
Some more ambiguous phrasing might be avoided. Within five minutes of the hour, the phrase "five of seven" can be heard "five-oh-seven" Minutes may be expressed as an exact number of minutes past the hour specifying the time of day e. Additionally, when expressing the time using the "past after " or "to before " formula, it is conventional to choose the number of minutes below 30 e. In spoken English, full hours are often represented by the numbered hour followed by o'clock as ten o'clock , as two o'clock.
This may be followed by the "a. O'clock itself may be omitted, telling a time as four a. Minutes "" to "" are usually pronounced as oh one to oh nine nought or zero can also be used instead of oh. Minutes "" to "" are pronounced as their usual number-words. It is not always clear what times " a. From the Latin words meridies midday , ante before and post after , the term ante meridiem a. To go to school I get up at am and eat breakfast, brushb my teeth, get dressed, put on makeup, comb and leave the house.
On school days I usually get up at 6 o'clock, then I have breakfast, I get dressed, I brush my teeth and I go to school. I get up at 6 am, because I spent 1 hour to prepare for school and about 1 hour to go school with car, busses and underground. After I put on makeup and I brush my hair. Finally I leave my home and I go to school. I wake up at half past seven , I get up at eight o'clock.
I dress at five pas eight and I hace breakfast at quarter past eight , I eat tomaste with jam. The clasess start at ten to nine and finish at ten to two. I hace lucha at ttwenty past two and I have homework from four o 'clock at six o 'clock and I have a shower at seven o 'clock and I have dinner at nine o 'clock.
I go to be at ten o 'clock. I wake up at 6 am, then i get up 20 minutes later. Do it again: 8 is your middle number and is therefore your median. The past tense of 'wakes' is 'woke'. She wakes at 8 a. She woke at 8 a. Both are accepted, but "a quarter after" is preferred in formal writing. What is the dot above the lowercase 'i' and 'j' called? What is the toughest academic course according to the Guinness Book of World Records ? What do you think is the reason why female students are now required to take NSTP?
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Ask Login. Math and Arithmetic. Can you tell me what time is it, please? Could you tell me the time, please? Do you happen to have the time? Have you got the right time? What time do you make it? Examples: It is half past two. Examples: It is 4 minutes to eight. Examples: It is five to ten. Examples: It is ten after two.
Examples: It is ten past five. M, etc….
Within a day, single hours were unreliable. In warfare the clock system is especially The Clock [Ten Past Eight] in drawing attention to enemy locations. Namespaces Article The Clock [Ten Past Eight]. It is not usual to use a. Several research studies indicate that this test is an excellent tool to screen for cognitive impairment. We can use dot or colon as a seperator between hours and minutes. Do it again: 8 is your middle number and is therefore your median. The official according to an American, Australian and British dictionary I checkedand most common spelling for AM is "ante meridiem " which is a Latin phrase.
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