Some questions about the interpretation of time-intervals: 1. Does 2004-01-01/2004-01-10 include January 10, or does it end at 2004-01-10T00:00? 2. Is...
923
John Steele
johnmsteele
Aug 18, 2004 11:53 pm
Good questions. I don't think they are explicitly answered in the standard. Now, can an answer be pieced together? I think so, but there is room for debate. I...
924
ali0917
Aug 19, 2004 4:10 pm
I believe number 1 should be a mutual agreement thing, as no end time is specified. For number 2, the latter (2004-01-01/P10D = 2004-01-01/2004-01-11) sounds...
925
piebaldconsult
Aug 19, 2004 7:59 pm
Indeed, it's always up to mutual agreement. But my opinion on (1) is that an incomplete timepoint has zeroes for the truncated values (that's defined in the...
926
John Steele
johnmsteele
Aug 19, 2004 8:37 pm
I would have to argue that is contrary to common usage and would confuse people. Consider a two day conference, described in text as January 10-11. An ISO...
927
ivy19991231@...
ali0917
Aug 20, 2004 6:28 am
Yes. That would make sense for, say a conference taking place traditionally showing 10 -- 11 January, 2004 to mean both days and ISO notation being...
928
piebaldconsult
Aug 21, 2004 1:23 am
Remember, these format are essentially for computers to understand, not people, "commom usage" doesn't apply. The formats are humanly readable simply so they...
929
John Steele
johnmsteele
Aug 21, 2004 1:38 am
I believe that the definitions in 3.3 and 3.7 taken together say that. A calenday is an interval starting at 0000, ending at 2400, and a date is a means of...
930
ivy19991231@...
ali0917
Aug 21, 2004 2:20 am
That makes sense. I usualy use a modified form of ISO 8601 for presenting to people when I wish to use numeric dates. It usually would look like this: ...
931
piebaldconsult
Aug 22, 2004 12:34 am
No, they just define what a date (either calendar or ordinal) is. Without saying what one means or how to use it. But also look at 3.17 and 3.26 -- 3.26...
932
John Steele
johnmsteele
Aug 22, 2004 2:07 am
I am largely in agreement with all of that. Certainly the specifics of a mutual agreement trump an argument over what is most logical. In the absence of a...
933
Tex Texin
textexin
Aug 22, 2004 9:00 am
Hi, FWIW, I agree with John. 1) The standard refers to dates with reduced representation as being a specific day month, year or century. Therefore it doesn't...
934
Bev MARKS (Mr)
bevm1066
Aug 22, 2004 9:42 pm
... at ... them.) ... exist? ... Tim and All We use ISO 8601 notation in an XML specification we are developing as a broadcast application and specify the...
935
Tex Texin
textexin
Aug 22, 2004 10:15 pm
If you are using date-time in XML, consider the xml schema spec and esp.: http://www.w3.org/TR/xmlschema-2/#isoformats and subsequent section on adding...
936
explorecraft
pa_ria
Aug 31, 2004 6:06 pm
searching Google for conection between ISO8601 and education - There is no apparent acceptance yet. So, I wrote my daughter's teacher the following note. ...
937
ivy19991231@...
ali0917
Sep 1, 2004 12:06 am
That is a nice letter. However, it's actually MM/DD/YYYY that's used in only a few places in the world (off the top of my head, they are: USA, Canada (in words...
938
bandi@...
Sep 1, 2004 12:40 am
I whole-heartedly agree with both writers. These are exactly my sentiments and information about the usage of ISO 8601 date and time. As a language...
939
johnmsteele
Sep 1, 2004 1:35 am
... Another Yahoo group, wwdates, was spun off of this group to handle the more "human" aspects of a common date format. However, it never really caught on,...
940
ivy19991231@...
ali0917
Sep 1, 2004 1:45 am
Such a group exists on Yahoo Groups called 'wwdates' or WorldWideDates. I think I invited you to it before. ... Such a group exists on Yahoo Groups called...
941
explorecraft
pa_ria
Sep 1, 2004 8:59 pm
Perhaps I should clarify - the dates were like this at school: 9-8-2004 Go figure. I should get a lively response shortly, schools and teachers do not normally...
942
ivy19991231@...
ali0917
Sep 1, 2004 9:12 pm
OK, so that's M-D-YYYY, a.k.a. September 8, 2004?...
943
explorecraft
pa_ria
Sep 5, 2004 5:20 pm
This was a casual observation but it just became important. A call from my daughter's school enquires about precisely this, as their task is difficult enough...
944
ivy19991231@...
ali0917
Sep 5, 2004 5:39 pm
NASA sometimes uses dates like '2000 January 1' on their site. It's better to put the weekdays after the calander date, as it means less than the calander date...
945
Tex Texin
textexin
Sep 5, 2004 6:22 pm
It's a good topic for wwdates... Personally, since DOW is redundant information, (easily calculated from the date, but useful as a parity check), I would want...
946
ivy19991231@...
ali0917
Sep 5, 2004 6:52 pm
I guess we'll continue such discussion on wwdates......
947
piebaldconsult
Sep 5, 2004 11:56 pm
Use the right tool for the right job. ISO8601 is essentially a _written_ protocol. It seems (as you've found) that trying to verbalize it is difficult. But...
948
ivy19991231@...
ali0917
Sep 6, 2004 12:13 am
You got all of that right. The only thing I have against this is that that letter 'T' between the date and time needn't be used in a setting where a _person_...
949
piebaldconsult
Sep 6, 2004 5:01 am
And what occured to me after I posted that is that when verbalizing, you're using one language or another, rather than the more or less universal language of...
950
ivy19991231@...
ali0917
Sep 6, 2004 8:10 am
Very true. I don't think I've said aloud a date in a different format besides 'Monday, the first of January, two thousand and one' (of course, not always...
951
piebaldconsult
Sep 6, 2004 2:34 pm
... doesn't ... Actually the separator matters even less to the computer, and ISO8601 prefers that it not be present, it's only there to aid in human ...
