Re: Day Number in the Aristean Calendar
- Dear John and my Fellowmen,
Thank you, John, for pointing out that the present ISO 8601 is for
the Gregorian calendar. I posted here the Aristean calendar because
it is similar to the Gregorian calendar. Both are solar calendars
with 365 days in common years and 366 days in leap years. So the
provisions of ISO 8601 may be applied also when the Aristean
calendar is implemented.
Of course, some rules have to be modified. For example, week 1 is
simply and always will be January 1 to 7 in the Aristean calendar.
No ifs anymore. There are day numbers in the Aristean calendar
which will always be Sunday, red-letter day. In the Gregorian
calendar, a day number may be Monday (day 1) or Tuesday (day 2), and
so forth. I just wanted to illustrate that the Aristean calendar is
much simpler than the Gregorian calendar. So there is a need to
reform the Gregorian calendar and apply the relevant ISO 8601 rules
to it and modify some of them.
Fractional part of the day should be added to ISO 8601 since this is
used by astronomers using the Julian Number (or Julian Day Number?).
Aristeo Canlas Fernando, Peace Crusader
Motto: pro aris et focis
--- In ISO8601@yahoogroups.com, "John Hynes" <john@h...> wrote:
> This group is about ISO 8601, which uses the Gregorian calendar. I
> would recommend posting this to the Calendar-Reform group at
> Regarding time format, I proposed adding fractional day
> in my post dated April 1, which you can read at
> http://groups.yahoo.com/group/ISO8601/message/1287 . Although
> not part of the ISO standard, fractional days are used with dates
> astronomers, in forms such as 2005 Oct. 16.110.
> Note that currently ISO 8601 accepts the representation of time of
> day using fractional hours, minutes or seconds, such as:
> 2005-10-16T02.6875 (fractional hour)
> 2005-10-16T02:41.25 (fractional minute)
> 2005-10-16T02:41:15.001 (fractional second)
> John Hynes