# Quick Answer: Is It 24 Hour Or 24 Hours?

## Is there an apostrophe in 24 hours notice?

You are correct.

“24 hours’ notice” is possessive for the same reason as “a day’s drive,” “a moment’s thought,” or “in five minutes’ time.” I assume the apostrophe is dropped due to simple ignorance.

If the notice belongs to the hours, then it has to be a plural possessive, 24 hours’ notice..

## Is it 2 day or 2 days?

2 Answers. “Two-day” is an adjective here, written as one word. ” two days’ ” is a possessive form (“an auction of two days”). First variant is more common to use.

## Who decided 24 hour day?

HipparchusHipparchus, whose work primarily took place between 147 and 127 B.C., proposed dividing the day into 24 equinoctial hours, based on the 12 hours of daylight and 12 hours of darkness observed on equinox days.

## Why is a day 23 hours and 56 minutes?

Not quite 24 hours, it turns out — it’s precisely 23 hours and 56 minutes. But because Earth is constantly moving along its orbit around the sun, a different point on the planet faces the sun directly at the end of that 360-degree spin.

## Is 3 am night or morning?

Anything AM can be referred to as morning, and anything PM as night. Generally these will be broken into morning (AM), afternoon (PM), evening (PM) and night (PM). People sometimes confuse the earlier AMs because it’s still dark outside, but 2 AM is 2 in the morning, not night.

## Is 11 59 pm right before midnight?

Using numbers from 1 to 12, followed by am or pm, the 12-hour clock system identifies all 24 hours of the day. For example, 5 am is early in the morning, and 5 pm is late in the afternoon; 1 am is one hour after midnight, while 11 pm is one hour before midnight.

## What is the correct way to write 24 hour time?

A time of day is written in the 24-hour notation in the form hh:mm (for example 01:23) or hh:mm:ss (for example, 01:23:45), 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 …

## How long is 24hrs?

1 days24 hours equals 1 days. Convert 24 hours into minutes, seconds, years, months, weeks, miliseconds, microseconds, nanoseconds, etc…

## Is 0.5 half an hour?

This conversion of 0.5 hours to minutes has been calculated by multiplying 0.5 hours by 60 and the result is 30 minutes.

## Is one day 12 hours or 24 hours?

24 hours are divided into two parts — a day lasting 12 hours and a night lasting 12 hours. 1 hour contains 60 minutes, which also have 60 seconds each. Each second is then divided into 1000 milliseconds.

## Is it hours or hour’s?

Both are correct, depending on the function of the base word hour in a sentence. When it acts as a noun and refers to more than one unit of time, it has a plural inflection. So it is “5 hours”, not “5 hour”. Example: They played for 5 hours.

## What is 6am in 24 hour time?

24-Hour Time Formatam/pm24-hour3am03:004am04:005am05:006am06:0022 more rows

## Is it 2 hour or 2 hours?

“I walked for two hours” is used as a NOUN; on the other hand, “I did a two hour walk” is used as an adjective. we can add an “s” to a noun, but not to an adjective.

## Does a day have 24 hours?

Modern timekeeping defines a day as the sum of 24 hours – but that is not quite correct. The Earth’s rotation slows down over time. So in terms of solar time, most days are a little longer than 24 hours.

## What time is 11 59 pm?

11:59 PM or 12:01 AM, or. 23:59 or 00:01 (24-Hour Clock)