Do we believe that there is actually a time known as Most people I know would say that this time does not exist or that doomsday is here if we were on that moment. Therefore the day begins with where we naturally start counting from. Using this argument I believe 12 noon to be 12am as it is the end of the morning. If we take this to be true then we can see that military time as it is known uses because it is the end of that day and a full 24 hours otherwise why don't all of our clocks say My bank sent me a message this week asking me to pay in funds by 12pm on 12th June to avoid charges.
I paid in at 3. I called them and they have waived the charge, but still insist that 12pm is midday. John Griffiths, Norwich Norfolk Both 12am and 12pm are precise moments of time. Therefor 12am is midday and pm would start straight after. The confusion has started since the invention of the digital clock.
Well, I think of it this way: Midnight is an exact moment, the border, between the period of time after noon of the day ending pm and the period time before noon of the day beginning am.
I think of am and pm as periods of time between midday and midnight and not inclusive of them. M is ridiculous. The argument that it is both ante and post midday does not hold. It is only both because you are using two days instead of the specific day you are talking about. It is A. To argue that it is also P. M post mid-day is irrelevant because it is only post mid-day Sunday not Monday. If you say 12am Monday there is no reason to confuse the P. This applies to both 12s. Is there an authority on the subject?
At least there will be no confusion then. Jules Smibert, Gold Coast Australia As we normally count hours numerically adding 1 to the previous hour and as in a normal sequence 12 comes after 11 if it is then 11pm midnight must be 12pm and at the same time It starts at , which would mean that would be 12am and then would be 12pm. It depends how you classify a day, if it runs from until then 12am is noon and 12pm is midnight.
If it runs from until then 12am is midnight and 12pm is noon, but surely we all agree is not a time? Think how many computer operations could take place unnoticed in that no-man's land of a whole second second! Just make sure you specify the appropriate day.
Midnight and midday are neither am or pm as explained in the GMT link he provided. As 'x' approaches zero it never actually gets there just as it reciprocal never reaches infinity.
Gary Reid, Wollongong Australia Midnight is neither 12pm or 12am, there is no such time. Midnight is 12 midnight and mid-day is 12 noon. All other usage is sloppy. As one reply says the armed forces use and George Redgrave, Crawley United Kingdom The disagreement about midnight stems from the fact that it is a boundary between two days. Therefore Sunday or Monday are both midnight meaning Sunday to Monday.
It is common for transport timetables to use Sunday or Monday, or pm or am, to further reduce confusion. There are no standards established for the meaning of 12am and 12pm.
It is often said that 12am Monday is midnight on Monday morning and 12pm is midday. This puts all the times beginning with 12 and ending with am in the same one-hour block, similarly with those ending with pm.
It can also be argued that by the time you have seen a clock showing at midday it is already post meridiem, and similarly at midnight it is already ante meridiem. Times in the first hour of the day are sometimes given as, for example, am, with am corresponding to midnight, but with a time twelve hours later given as pm.
Another convention sometimes used is that, since 12 noon is by definition neither ante meridiem before noon nor post meridiem after noon , then 12am refers to midnight at the start of the specified day and 12pm to midnight at the end of that day Given this ambiguity, the terms 12 am or 12 pm should be avoided in order to provide a simple definition of midnight.
The current atomic clock system at NPL is the basis of all UK time, and cutting-edge research is being carried out to improve timekeeping accuracy even further. Hence, if we refer to the mornings and say 1 am to 11 am, then 12 must follow as 12 am midday ; and, if we refer to the afternoons and nights and say 1 pm to 11 pm, then 12 must follow as 12 pm midnight.
Think of it as simple counting. Thank you for all your comments. It is indeed a complicated question. Midnight on Sunday is during the night between Sunday and Monday, as Joe says. With the hour clock, we start again from after For example after we do have ; ….. Same way after noon i. What do you think Mr. I agree with others who reason that 12 AM is midnight, as AM is one minute past midnight. Just as AM is one second past midnight. Because the Earth takes a little over days to orbit the Sun, we need to make adjustments to keep the seasons from drifting: leap years and even leap seconds.
How do we divide time? While days and years are fairly neat astronomical events, what explains months, weeks, hours and minutes? Why do we have daylight saving? When do the clocks go forward in ? Marking the start of British Summer Time, the clocks 'spring forward' in March, meaning we'll lose an hour's sleep When do the clocks go back in ?
Marking the end of British Summer Time, the clocks go back in October, giving us an extra hour in bed Discover gifts from the home of time Learn the story of Greenwich Mean Time. Keep track of time with Royal Observatory Greenwich watches, and our famous Shepherd Gate clock replica for your wall. Time to spare?
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