On the Internet, the notation of times and dates has always been problematic. In particular, the format of Internet E-mail messages, as defined in 1982-08-13...
... Sure we do. Here are some of mine on [ISO 8601:2004]: [a] In the notation of a time interval by its start and end, is there any requirement that the end...
I see mentions of the date format YYYY-DDD and time formats that include decimal fractions of a second. Shall I assume that YYYY-DDD.fffff (where fffff is...
I work for a company which offers internet applications/services for commerce in an industrial setting. For many of the transactions, the delivery date is...
I believe astronomy could make good use of fractions of day. I often have wished an akternative time-of-day scheme would be decimal days, like 1999-12-31.5 for...
... languages ... with ... ISO 8601 is an International standard and it specifies "W" as the character designator which must precede a week number. The date...
The 2000 final draft (I don't have access to the 2004 version) specifically allows decimal hour, minute, or second representation. If you use decimal hour, you...
... No, none that I can see. ... No, in :2004 it's section 4.4.4.1 which is the same as :2000 section 5.5.4.1 "... combining any two complete date and time of...
... Our system does provide an XLM Order message and for this there is no disucussion - We send the week date according to the ISO standard plus we also...
Pl. mention is there any axiom for- 1. calculation of time span (BC & AD) 2. one-one correspondance between Number-line & Time-line. 3. Leap-Year (BC/AD) 4....
Thanks for your extensive reply! ... I do not see what you mean. The referenced text is: [4.4.4.1] Representations of time intervals identified by start and...
... messages, ... 822 ... a ... and ... was ... ISO8601, ... AFAIR during work on the successor to RFC822 (ietf-drums working group) there was a proposal to...
Hi, David, According to ISO standard I am understanding these characters used for codifying only as conventions with no idiomatic meaning of use. So, if you...
... I'm not sure what you are asking. ISO8501 mandates the Gregorian calendar but no one really used it before 1582, they used the Julian calendar. After...
... I understood the question not to relate to a zero-length interval, but to a representation in which one or the other value is empty (not specified) such as...
... Which section of which version? I don't see that verbiage. Section 2.1.6 in version :2004 has " NOTE 1 In the case of discontinuites in the time scale,...
ISO 8601 does not allow for decimal fractions of the day, only hours, minutes and seconds. Astronomers do, indeed, use fractional days. The ordinal date...
... The formats: YYYY-MM-DD._ff YYYY-DDD._ff YYYY-WwwD._ff seem reasonable enough (though I don't expect I'd ever have need of them), but... If the fractional...
... No. The T delimiter separates the Date component from the Time component. If a fractional-day representation were to be allowed, the fraction is a fraction...
... IMHO this is the main reason why ISO 8601 cannot support fractions of a day. Hours always have 3600 SI seconds. Days may have between 86399 and 86401...
... component. ... is a ... Which means the time _within_ that day. ... unreasonable to ... That is also the case of the week and ordinal date formats as well....
... Hours do NOT always have 3600 SI seconds. Sometimes they have 3601. Hypothetically, they can also have 3599. Likewise, a minute may have 59, 60 or 61...
... That would be a half-hour past midnight, i.e. 00:30, although it should properly be written with two 0s. Adding an extra digit would be redundant, since...
