Whether QM correctly calculates dates?


Hi all.
Excel’s Date(), Eomonth() and Edate() are correctly calculate the beginning and the end dates for the months of 1900 year.
Why QM’s Date(), Eomonth() and Edate() can’t do the same? Or what am I doing wrong?
Thank you in advance for your help.
See the model file:
QM5.3.4 Date Functions wrong calcs. SAU.model

Edited question

Dear Sau,

The issue is that there is a bug in the Excel date in the year 1900. Excel incorrectly counts 1900 as a leap year. See https://support.microsoft.com/en-us/kb/214326. This can be seen in the model I am attaching, The last day of February is 59 and the first day of march is 61. Quantrix made a conscious decision to not replicate that bug, so dates before March 1, 1900 will not match between Quantrix and Excel.

Thank you for your question.


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