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Time

This category is for questions about the methods humans go about measuring the passage of time. You can also find questions about converting one unit of time to another.

9,512 Questions

How many hours does an adult have to sleep?

8 hours is taken to be a good and agreed estimate.

How many miliseconds are there in a week?

7 days * 24 hours * 60 mins * 60 seconds * 1000 milliseconds is 604,800,000 milliseconds.

How many kilo into a pound?

1 pound = 454 grams or 1 kilo = 2.2 pounds

How many days in a millennium?

365,242 or 365,243 depending upon what particular day you start counting.

365 x 1000 = 365,000, but you need to add extra days for the leap days:

25 leap days will occur during centuries whose final year is evenly divisible by 400 (e.g. 1901-2000 had 25 leap days); otherwise 24 leap days will occur (e.g.1801-1900 had 24 leap days).

Therefore 10 centuries will include 8 or 7 centuries with 24 leap days and 2 or 3 centuries with 25 leap days respectively.

24 x 8 + 25 x 2 = 242 and so 365,000 + 242 = 365,242, or

24 x 7 + 25 x 3 = 243 and so 365,000 + 243 = 365,243

Is life really just a dream?

I was thinking that this is all really some weird dream or something this life.

Why is it convenient to measure time using 24 hours in a day not 23 or 25?

It is the most convenient number to choose because it is not a prime number.

When is an instrument said to be dead-beat?

The drum is said to be a dead-beat instrument. This is because many people believe that it is over used.

What year does the myan calendar end in?

2012 but there are later dates in the future that are not on the actual calendar.

How many minutes are in 1 year?

365 days * 24 hours in a day * 60 minutes in an hour = 525600 minutes

527040 for leap year

60 mins. times 24 hrs. equals 1440 mins. times 365 days. equals 532896 mins. The total minutes in one year.

How many seconds equal 1 nanosecond?

1 nanosecond = 10-9 sec = 0.000000001 sec = 1 billionth of a sec.

(Roughly the time it takes light/radio to travel one foot.)

How many seconds are in five minutes?

There are 300 seconds in 5 minutes.

What does the abbreviation of PM mean?

PM is an abbreviation for Post meridiem; Latin for after noon. Incidentally, AM stands for Ante meridiem - before noon.

How many milliseconds are there in 3.5 seconds?

There are 1000 milliseconds in one second. Therefore, 3.5 seconds is equal to 3.5 x 1000 = 3500 milliseconds.

What is is second preceding fortnight?

It's the period of time that began four weeks ago and ended two weeks ago.