"I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them."
"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."
-- Thomas Jefferson: American Founding Father, clairvoyant and seditious traitor.
"Wer Visionen hat, sollte zum Arzt gehen." - Helmut Schmidt
P.S.:
http://en.wikipedia.org/wiki/Date_an...ion_by_countryTime
The 24-hour clock enjoys broad everyday usage in most countries outside North America, Australia and the Philippines, at least when time is written or displayed. In some regions, for example most German, French and Romanian speakers, use the 24-hour clock today even when speaking casually, while in other countries the 12-hour clock is used more often in spoken form.
In other English-speaking regions, particularly former colonies of the United Kingdom, the 12-hour clock and 24-hour are used interchangeably in formal communications.
Most people in "24-hour countries" are so used to both systems that they have no problem switching between the two, perceiving "three o'clock" and "15:00" simply as synonyms. When speaking, a person may often pronounce time in 12-hour notation, even when reading a 24-hour display. It is also common that a person uses the 24-hour clock in spoken language when referring to an exact point in time ("The train leaves at fourteen forty-five …"), while using some variant of the 12-hour notation to refer vaguely to a time ("… so I will be back tonight sometime after five.").
http://en.wikipedia.org/wiki/12-hour_notationThe Latin abbreviations a.m. and p.m. (often written "am" and "pm", "AM" and "PM", or "A.M." and "P.M.") are used in English and Spanish.[7] The equivalents in Greek are π.µ. and µ.µ., respectively.
Most other languages lack formal abbreviations for "before noon" and "after noon", and their users use the 12-hour clock only orally and informally.
"Wer Visionen hat, sollte zum Arzt gehen." - Helmut Schmidt
If there's a chance of confusion I write 17:00 and not 5PM normally. If there's little chance of confusion, I'd say 5.