[JBDP] George T. Joseph wrote: > Also, for timeDuration purposes, I'm interpreting ISO8601 to mean that 1 > year = 12 months and 1 month = > 30 days (via para 3.12 and 3.18). [JBDP] So, one year is 360 days? Hmmmmm!
> That might not always be accurate but it is > always precise. [JBDP] Yes, always precisely wrong. It's not an easy issue with a straightforward solution, but it seems to me that the ISO 8601 approach is simplistic and useless. Does the interval from 1 Jan 2000 to 1 Jul 2001 really consist of 1 year, 6 months and 2 days? ...or is that 7 days! The answer is that for the 'date' part of a duration you can normalize on the basis that 12 months = 1 year and that's it. You can't in general tell how many days are equivalent to one month. It depends on the context, e.g. the base from which the duration is measured. That's inconvenient but it reflects the way the world works. I pay my rent at monthly intervals. How many days elapse between my writing one cheque and writing the next varies from one month to the next. That's the way it is and artificial simplifications like saying 1 month = 30 days just don't correspond to reality. -- jP -- This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and all copies of it from your system, destroy any hard copies of it and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. CREDIT SUISSE GROUP, CREDIT SUISSE FIRST BOSTON, and each of their subsidiaries each reserve the right to monitor all e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised to state them to be the views of any such entity.
