I hope I'm posting this in the proper space and not late (this may have been corrected by now), but on February 26 I downloaded the update to LibreOffice 6.2.0. After a week or so of using it, I noticed that some values in a timesheet were incorrectly displayed by one minute. For example, a cell that should have displayed 13:16 displayed 13:15. It did not do this in every cell, just one every now and then. It apparently was adding and subtracting correctly, because the end result was correct. However, it would not let me even change the incorrectly displayed value, like 13:15, to the correct value, 13:16. I uninstalled the new updated version and reinstalled LibreOffice 6.1.3.2. After this, the cell values displayed correctly without any outside editing. I'm a bit reluctant to try updating again without being sure that I am not corrupting my data in Calc. For reference, I am using Windows 10, LO for x64. I apologize if this is the result of incorrect settings on my end.