On 27 July 2015 at 15:57, Ronald Oussoren <ronaldoussoren at mac.com> wrote: > IMHO “+ 1 days” and “+ 24 hours” are two different things. Date > arithmetic is full of messy things like that. “+ 1 month” is another > example of that (which the datetime module punts completely > and can be a source of endless bikeshidding). Precisely. Paul