George Russell writes:
| [...]
| Allowing a difference in days to be used as a number of months is
| just going to cause confusion and bugs [...]
Enough to last a month of Sundays? But seriously:
Time is divided into intervals of irregular length, so operations like
adding 1 month to "midday on 31 Aug 1999" are open to interpretation.
There's been at least one mention in this thread, of rolling it
forward to 1 Oct, but in my work it usually needs to be truncated to
30 Sep.
How about an arithmetic precision analogy? If we know A to 5
significant figures, and B to 8 significant figures, we should only
heed 5 significant figures of A*B.
Suggestion: Throw away the spuriously precise part, so that "midday on
31 Aug 1999" + 1 month = "Sep 1999".
Regards,
Tom
