Does everyone in the world observe the Gregorian Calendar?
86564
I imagine business people pretty much need to stick with a standard Gregorian calendar, but they might have a different calendar when they deal with people in their own culture. It looks like there are Chinese, Hebrew, Islamic and Japanese calendars. I'm not sure how much they are still used, however.\n\nAs a side note, my industry (television broadcasting) often uses different monthly calendars. The month always starts on a Monday and ends on a Sunday. Months are either 28 days or 35 days long. It keeps things interesting around here!
1185970
Okay, I just have to wonder, seriously, what's the difference now?  Calendars are simply tools for humans to measure our man-made construct of time.  In reality, there is no time.
6756
Scientists are delaying the start of 2006 by the first "leap second" in seven years, a timing tweak meant to make up for changes in the Earth's rotation.\n\nThe adjustment will be carried out by sticking an extra second into atomic clocks worldwide at the stroke of midnight Coordinated Universal Time, the widely adopted international standard, the US National Institute of Standards and Technology said this week.\n\nFor more info, visit:\nhttp://www.theage.com.au/news/world/a-year-late/2005/12/25/1135445473624.html
355992
I can't think of a single culture that had a calendar and did not have an approximately 365 day year. It's just something you notice, and it's not really avoidable.
502734
Its on the same day each year if that helps??
595229
No.  I have trouble believing that of all the billions of people in the world, only twelve different things could happen to each one on a given day.\n\nBesides which, most horoscopes are so vague as to be meaningless.  "What you had lost will be regained" is an example; either literally or metaphorically, that happens to almost everyone every day.  Way to go out on a limb, there.
133309
Before a standard calendar, generally dates were refered to by who-ever was in charge and by the month of the season.  So today would be:\n\nThe 10th day of the 2nd month of the 6th year of the Presidency of George W. Bush.\n\nIt gets a little confusing, but is fairly accruate.\n\nBCE came into being when people realized that not everyone accepted AD (anno domini - Year of God in Latin).  In fact there are several calendars out there.  so BCE and CE have been accepted as the "norm" for all dates in anthropology and archaeology.\n\nI think Rome came up with the first one for months, but still refered to the years as "in the reign of [insert name here]"
913486
Actually a good many countries around the world use the 24 hour clock system. Then there isn't a need to say AM or PM, you know whether its day or night. Also the military begins attacks, movements and such on Greenwich mean time, its a town in Britain. And its used so everyone that aware of an operation knows what time it begins regardless of what part of the world they are in.
743967
Most of the non-English speaking world puts Day/Month/Year. Most of the English speaking world puts Month/Day/Year.\n\nNo big deal.
1027047
use a computer calender
105455
For much of human existence, the shortest interval of time in common use was the day.  Thus, the first attempts to methodically measure time centered around the day.  Numerous calendars were invented to relate the day to the month, (which referred to the regular cycle of the Moon, hence the name month), and with the year, which referred to the regular cycle of the seasons, and, once it was noticed, the regular cycle of the sun's path in the sky getting higher and lower.  \n\nWhen it came to subdivisions of the day, at first people spoke of morning, midday, evening and night, as judged by the position of the sun.  Sometime around 5000 years ago, people in the Mideast and North Africa began to use devices that allowed them to more methodically subdivide the day.  The Egyptians divided the time between sunrise and sunset into twelve divisions, defining their "hour".  Of course, the length of their hour varied from day to day as the days got longer and shorter.  Hours could be measured methodically by use of a sundial or similar device.\n\nSubdivisions of the hour came about with the invention of devices like hourglasses or other devices that used the constant flow rate of some other fluid, like water, or that used a constant burn rate of something, like candle wax or incense.\n\nAttempts to measure short time periods, like minutes and seconds, came about later, and were first very crude.  Galileo used his pulse to time the period of oscillation of a pendulum.  Clocks using escapement type devices were developed in the 13th century.  The first pendulum clock appeared in 1656.  Since keeping time is essential to ocean navigation (specifically, comparing the local sun time with the reference time at a know location allows one to determine longitude), much effort went into improving mechanical clocks using escapements or pendula.\n\nIn the early 20th century, pendulum clocks gave way to quartz clocks, which used the regular vibrations of a quartz crystal in an electric field to produce a highly accurate sub-second timing device.\n\nThese clocks eventually gave way, for highly precise applications anyway, to clocks which use the natural oscillation frequencies of atoms like Cesium.
12096
I think the answer to your question is yes, but only briefly. The world is divided into 24 time zones. Each one corresponds with an hour of the day. So when it becomes December 25th (12:00 a.m.) in the last time zone, it is 11:00 p.m. in the first time zone, if I have done my math right. So for one hour, it is christmas day all over the world.
856213
Doesn't iCal do this?
350635
The Mayan Calendar is probably where this came from.  I've been attempting to determine how that particular date came up.  Using the Gregorian calendar (our common), it is believed that the Mayans started counting to that date from what is called the "Birth of Venus", which is believed to be Aug 13, 3114 BC.  From that day, after "13 Baktuns", There would be a "re-awaking of time and space".  One Baktun is 144,000 days, or about 400 years (shy 80 minutes).\n\n13 Baktuns is 1,872,000 days.  There was no zero year between B.c. and C.e.   August 13, 3114, was actually, 3113 years, plus the number of days between Aug 13, and the end of 3114, which I believe, was 139.  It's important to understand the Gregorian calendar, in order to interpet the Mayan calendar (because these calculations are determined using the Gregorian calendar).  \n\nThe calendar was corrected on Aug 4, 1582 by pope Gregory, so from that point forward, and backward, the dates can be calculated using the Gregorian calendar.  At that time, it was determined that each four years would add one day, called a leap year, but on century years that are not divisible by 400 that would have been a leap year, the day (feb 29) would not be added.  But, on century years that are divisible by 400, there would be a day added, a leap year, as 2000 was.\n\nAnyway, I could go further here, but that date is about a year off..  I figure that date to be 12.25.2011, using the information above.  And the Mayans only believed that a "re-awaking of time and space" would occure on that date.  I don't believe it will be any major shift, and I wouldn't worry too much about it, as there is nothing we can do about it..   Just like 2000 when everybody was worried, nothing happened, except the people that were born on Feb 29, got treated to an extra birthday...
934413
Pagan here, we have Holidays yes.  Our holidays are not tied to given dates, they are seasonal, the dates can be charted by the zodiac and the suns position in them.\n\nSamhain Oct. 31 (All Hallows Eve, or "Hallowe'en"; November Eve) \n\nWinter Solstice approx. Dec. 21 (Midwinter; Yule, or "Wheel") Also called Pagan Christmas by some , though not by me.  I don't do a Christ's Mass\n\nCandlemas Feb. 2 (Imbolg or Oimelc, "in the belly") \n\nVernal Equinox approx. Mar. 21 Day and night are equal, but day is increasing \n\nBeltane April 30 (May Eve) \n \nSummer Solstice approx. June 21 (Midsummer) This Sabbat marks the longest day of the year.\n \nLammas July 31 ("Loaf mass", also called Lughnassad, "Commemoration of Lugh"; August Eve) The First-Fruits of the Harvest.\n\nAutumn Equinox approx. Sept. 21 Night and day are equal, with night increasing in length\n\nAnd yes, there are rituals and customs to go with each of them.
225723
Yes, every single country in the world has a 4th of July. The calendar is universal, so all countries have the same dates.
647263
Yes.  The Aztec calendar ends on the winter solstice (Dec. 20) of the year 2012.  The Aztecs have never had to adjust their calendar for leap year or lunar motions in 6000 years. It has always been right.