On Fri, Jul 18, 2008 at 11:29 AM, Derek Atkins <[EMAIL PROTECTED]> wrote:
> Graham Leggett <[EMAIL PROTECTED]> writes: > > > Charles Day wrote: > > > >> Tell me how this proposal would cause "random" date changes. Only > >> the *display* of the timestamp changes, and only according to > >> settings that you pick yourself. > > > > Try this: > > > > Enter a transaction dated 1 March 2008 in an account with timezone > > UTC+02, with its split in a second account with a timezone of UTC. > > Okay, so the transaction would have an internal timestamp of > "2008-03-01 12:00:00 UTC". In UTC+02 this gets displayed as > 2008-03-01. It will also be displayed as 2008-03-01 in the > UTC-TZ account. > > > Later, the user notices that in the second account, the transaction > > appears on 29 Feb 2008, goes "that's odd", and "corrects" the date to > > say 1 March 2008. > > Nope, it will be 2008-03-01 in both accounts. > > > Without the user knowing, the transaction on 1 March is now actually > > on 2 March 2008. > > Nope. See above. > > [snip] > > Having said all that, I'm beginning to believe that for the > POST Date I think it should ALWAYS be in UTC and always be > displayed as UTC, regardless of the local timezone. > That's what I'm suggesting would happen for those users who don't choose to enable "time of day" or "multiple time zone" features (and these two features are separate things!). However, if a feature for entering "time of day" will not be supported, even in a fixed time zone, then I see no point using timestamps; might as well just use dates alone. > Before you get yourself in a snit, let me explain what I > mean. > > When *entering* a date, we take the entered string (e.g. 2008-07-18) > and create a UTC timestamp of 12:00:00 on that date in UTC. > So it doesn't matter that we're in UTC+14, we see that the > local date is July 18 so we create a July 18 noon-UTC timestamp. > > When displaying a date, we take the UTC conversion of the > UTC timestamp and display it. > > voila -- we now have "dates" using time_t. > > -derek > -- > Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory > Member, MIT Student Information Processing Board (SIPB) > URL: http://web.mit.edu/warlord/ PP-ASEL-IA N1NWH > [EMAIL PROTECTED] PGP key available > -Charles _______________________________________________ gnucash-devel mailing list gnucash-devel@gnucash.org https://lists.gnucash.org/mailman/listinfo/gnucash-devel
