By the way, the dates in the file have to be in 2019 for the bug to happen. If the dates are all in 2020, everything will be fine. Dnia 1 stycznia 2020 17:42 robertorodriguez@wp.pl <robertorodriguez@wp.pl> napisał(a):   visit an org file with time records, press C-c C-x C-d.  Total time  displayed in the minibuffer will be 0 minutes.  Happens in GNU/Linux and  Windows 7 when the date is in 2020.  If you set the date to 2019, the correct amount will be displayed.    In GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.22.30)  of 2019-09-16 built on lcy01-amd64-030  Windowing system distributor 'The X.Org Foundation', version 11.0.11906000  System Description:	Linux Mint 19.3 Tricia   Recent messages:  Quit  Mark set  Quit  Updating speedbar to: /home/rar/RAR/clients/yas/...d  Total file time: 0:00 (0 hours and 0 minutes) [2 times]  No library org-list.el in search path  Type C-x 1 to delete the help window, C-M-v to scroll help.  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