12:21 am

You can also email us on info calculat. To convert hour time AM to hour time format also known as Military Time we need to do a few simple steps:. In our case 12:21 am the number of hours is equal to 12 and it's AM12:21 am, so we reset number of hours to

The modern hour clock is the convention of timekeeping in which the day runs from midnight to midnight and is divided into 24 hours. This is indicated by the hours and minutes passed since midnight, from 00 to 23 This system, as opposed to the hour clock , is the most commonly used time notation in the world today, [A] and is used by the international standard ISO A number of countries, particularly English speaking, use the hour clock, or a mixture of the and hour time systems. In countries where the hour clock is dominant, some professions prefer to use the hour clock. For example, in the practice of medicine , the hour clock is generally used in documentation of care as it prevents any ambiguity as to when events occurred in a patient's medical history.

12:21 am

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June Both in common use. In any other case we just leave the number of hours untouched.

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The AM PM 12 hour time format can be confusing. When is AM Tuesday? Is it midnight on Monday, Tuesday noon, or Tuesday midnight? You would not be the first person to disagree or be confused. We asked people and received three answers to this question. You might be interested to know that there are no established standards for the meaning of AM nor PM, but there are answers. You may think you know, but you may not be right. In this article we explain the 12 hour AM PM clock format and answer questions including:. Who is Timewatch? Timewatch are specialists in time.

12:21 am

Normally time is shown as Hours:Minutes. See here. Midnight has another problem: there is nothing to tell us "is this the beginning or ending of the day". Imagine your friends say they are leaving for holiday at "midnight" on 12th March, what day should you arrive to say goodbye? Do you get there on the 11th assuming they leave at the very start of the 12th , or the 12th assuming they leave at the end of the 12th? So, when you see something like "offer ends midnight October 15th" tell them to use one minute before or after so there is no confusion! The official according to an American, Australian and British dictionary , and most common, spelling for AM is "ante meridiem " which is a Latin phrase. I recommend that spelling! But people sometimes use the phrase "ante meridian" a "meridian" in this case refers to an imaginary line in the sky when the sun is at its highest point. Example: means 10 Hours and 25 Minutes.

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History of the Hour. In American English , the term military time is a synonym for the hour clock. The GTFS public transport schedule listings file format has the concept of service days and expects times beyond for trips that run after midnight. In countries where the hour clock is dominant, some professions prefer to use the hour clock. That this universal day is to be a mean solar day; is to begin for all the world at the moment of midnight of the initial meridian coinciding with the beginning of the civil day and date of that meridian, and is to be counted from zero up to twenty-four hours. For example, Microsoft Windows and macOS activate the hour notation by default only if a computer is in a handful of specific language and region settings. In the past, some European countries used the dot on the line as a separator, but most national standards on time notation have since then been changed to the international standard colon. Style guides and military communication regulations in some English-speaking countries discourage the use of even in the hour notation, and recommend reporting times near midnight as or instead. Military Time Chart. Lexico UK English Dictionary. Protocols of the proceedings".

Some countries, including the US, Canada, and Australia, use the hour clock format including am and pm. What do these abbreviations mean? Is midnight am or pm?

The Times. The most commonly used separator symbol between hours, minutes and seconds is the colon , which is also the symbol used in ISO Chapter 2, Section 5 Paragraph Clock and Modern Temporal Orders. Yes, it's that simple. Geology Geological time age chron eon epoch era period Geochronology Geological history of Earth. Feedback form Hi! Galactic year Nuclear timescale Precession Sidereal time. A time of day is written in the hour notation in the form hh:mm for example or hh:mm:ss for example, , where hh 00 to 23 is the number of full hours that have passed since midnight , mm 00 to 59 is the number of full minutes that have passed since the last full hour, and ss 00 to 59 is the number of seconds since the last full minute. The 24th hour was the last hour of day time.