Jeff Garland

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Cyrille Dupuydauby wrote Totally agree with that, business related apps need holidays and business days. But holidays determination should be easily localizable.

It isn't just by locale, the application needs to determine holidays. For example, while there are some holidays in the US that everyone agrees on, but lots of companies use a couple floating holidays every year. They typically will tack one say a Friday after a July 4th on a Thursday to give employees a 4 day weekend. So any calculation of business days needs to be capable of handling these application specific cases.

Yep. And just to emphasise the point you just made... Some jurisdications might have a business day with respect to some activity but not others. For example, an exchange might have a trading day but not a settlement day. A foreign exchange contract might be written in NY effective on a Sydney holiday but the settlement date might depend on the union of holidays between Sydney and NY. All this indicates is that a calendar can be completely arbitrary and that different calendars can apply to the same business at the same point in time for the same jurisdiction for different parts of the same transaction. Like me, the world has warts ;-) Regards, Matt Hurd. IMPORTANT: The information contained in this email and/or its attachments is confidential. If you are not the intended recipient, please notify the sender immediately by reply and immediately delete this message and all its attachments. Any review, use, reproduction, disclosure or dissemination of this message or any attachment by an unintended recipient is strictly prohibited. Neither this message nor any attachment is intended as or should be construed as an offer, solicitation or recommendation to buy or sell any security or other financial instrument. Neither the sender, his or her employer nor any of their respective affiliates makes any warranties as to the completeness or accuracy of any of the information contained herein or that this message or any of its attachments is free of viruses.