In Calc: =DATE(6;1;-2) gives 2005-12-29 In Excel the same function gives 1905-12-29. ODFF [1] does not specify that the function depends on HOST-NULL-YEAR. [1] https://docs.oasis-open.org/office/OpenDocument/v1.3/OpenDocument-v1.3-part4-formula.html#DATE
OTOH, what Excel gives is also confusing: why "year 0" must mean 1900? If at all, DATE(6;1;1) should give 0006-01-01, not something related to HOST-NULL-DATE. Maybe use of HOST-NULL-YEAR here is more substantiated. The question arose in https://forumooo.ru/index.php?topic=9386.msg63874, about the Excel formula that stopped working for the reporter: =A1+DATE(6;1;-2) where A1 had a date, to which the reporter wanted to add 6 years. The formula is conceptually wrong, though (adding two serial dates makes no sense), so WONTFIX/NOTABUG is a valid resolution.
Forgot to mention, that OP mentioned there, that the formula also worked "not ideally", requiring them to change "days" constantly ("-1" or "-2"), so not fixing a broken-by-design and non-working formula is valid.
Hi @Mike, the LibreOffice behaviour, looks depends on the option: Menu/Tools/Options/LibreOffice/General - Year (two digits) with it to 1900-1999, does equal then excel -> 1905-12-29
(In reply to m.a.riosv from comment #3) Yes, you are completely correct: the mentioned setting is what the standard calls HOST-NULL-YEAR.
There's not much we can do about this. If we changed the two-digits year input window (for this function only) to 1900-1999 for a hard-wired Excel compatibility then documents that rely on the user's HOST-NULL-YEAR setup would break.
(In reply to Mike Kaganski from comment #1) > OTOH, what Excel gives is also confusing: why "year 0" must mean 1900? If at > all, DATE(6;1;1) should give 0006-01-01 That's not confusing, Excel simply does not handle dates before its null-date 1900-01-01, at all.
Hello, It's been a while since this issue was reported. Could you please try to reproduce it with the latest version of LibreOffice from https://www.libreoffice.org/download/libreoffice-fresh/ ? I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the bug is still present in the latest version.
Dear Mike Kaganski, This bug has been in NEEDINFO status with no change for at least 6 months. Please provide the requested information as soon as possible and mark the bug as UNCONFIRMED. Due to regular bug tracker maintenance, if the bug is still in NEEDINFO status with no change in 30 days the QA team will close the bug as INSUFFICIENTDATA due to lack of needed information. For more information about our NEEDINFO policy please read the wiki located here: https://wiki.documentfoundation.org/QA/Bugzilla/Fields/Status/NEEDINFO If you have already provided the requested information, please mark the bug as UNCONFIRMED so that the QA team knows that the bug is ready to be confirmed. Thank you for helping us make LibreOffice even better for everyone! Warm Regards, QA Team MassPing-NeedInfo-Ping
Dear Mike Kaganski, Please read this message in its entirety before proceeding. Your bug report is being closed as INSUFFICIENTDATA due to inactivity and a lack of information which is needed in order to accurately reproduce and confirm the problem. We encourage you to retest your bug against the latest release. If the issue is still present in the latest stable release, we need the following information (please ignore any that you've already provided): a) Provide details of your system including your operating system and the latest version of LibreOffice that you have confirmed the bug to be present b) Provide easy to reproduce steps – the simpler the better c) Provide any test case(s) which will help us confirm the problem d) Provide screenshots of the problem if you think it might help e) Read all comments and provide any requested information Once all of this is done, please set the bug back to UNCONFIRMED and we will attempt to reproduce the issue. Please do not: a) respond via email b) update the version field in the bug or any of the other details on the top section of our bug tracker Warm Regards, QA Team MassPing-NeedInfo-FollowUp