[O] Bug: clocktable thinks Oct 29 is Oct 28 [9.1.14 (release_9.1.14-1012-g643481 @ /home/unhammer/src/org-mode/lisp/)]

[Kevin Brubeck Unhammer]

Hi,

I did

$ git clone https://code.orgmode.org/bzg/org-mode.git

(which got me 643481fade386aa51d88ccc22b9669b0b77daaa1 )

$ cd org-mode
$ make autoloads
$ emacs -Q -l /tmp/init.el /tmp/foo.org

where /tmp/init.el has:

(add-to-list 'load-path "~/src/org-mode/lisp")
(require 'org)


and /tmp/foo.org has:


#+STARTUP: showall

* Top

#+BEGIN: clocktable :maxlevel 3  :tstart "2018-10-01" :tend "2018-11-01" :step 
day :stepskip0 t

#+END:

** TODO Undeobfuscate widget
    :LOGBOOK:
    CLOCK: [2018-10-29 må. 14:17]--[2018-10-29 må. 14:35] =>  0:18
    :END:
** DONE Deobfuscate widget
    :LOGBOOK:
    CLOCK: [2018-10-28 su. 14:17]--[2018-10-28 su. 14:35] =>  0:18
    :END:


and then, on the BEGIN line, I did C-c C-c. This gave me:
#+STARTUP: showall

* Top

#+BEGIN: clocktable :maxlevel 3  :tstart "2018-10-01" :tend "2018-11-01" :step 
day :stepskip0 t

Daily report: [2018-10-28 su.]
| Headline               | Time   |      |
|------------------------+--------+------|
| *Total time*           | *0:18* |      |
|------------------------+--------+------|
| Top                    | 0:18   |      |
| \_  Deobfuscate widget |        | 0:18 |

Daily report: [2018-10-28 su.]
| Headline                 | Time   |      |
|--------------------------+--------+------|
| *Total time*             | *0:18* |      |
|--------------------------+--------+------|
| Top                      | 0:18   |      |
| \_  Undeobfuscate widget |        | 0:18 |

#+END:

** TODO Undeobfuscate widget
    :LOGBOOK:
    CLOCK: [2018-10-29 må. 14:17]--[2018-10-29 må. 14:35] =>  0:18
    :END:
** DONE Deobfuscate widget
    :LOGBOOK:
    CLOCK: [2018-10-28 su. 14:17]--[2018-10-28 su. 14:35] =>  0:18
    :END:

The second date is 28, where it should be 29. I see the same on org-mode
9.1.9 (bundled with Emacs 26.1) or 9.1.12 and 9.1.14 from melpa-stable,
gnu elpa.

I do *not* see this in 8.2.10 bundled with Emacs 25.3.2.

The bug is also there without ":stepskip0 t" 


Emacs  : GNU Emacs 25.3.2 (x86_64-pc-linux-gnu, GTK+ Version 3.22.29)
 of 2018-04-19
Package: Org mode version 9.1.14 (release_9.1.14-1012-g643481 @ 
/home/unhammer/src/org-mode/lisp/)

current state:
==============
(setq
 org-tab-first-hook '(org-babel-hide-result-toggle-maybe
                      org-babel-header-arg-expand)
 org-speed-command-hook '(org-speed-command-activate
                          org-babel-speed-command-activate)
 org-occur-hook '(org-first-headline-recenter)
 org-metaup-hook '(org-babel-load-in-session-maybe)
 org-confirm-shell-link-function 'yes-or-no-p
 org-after-todo-state-change-hook '(org-clock-out-if-current)
 org-src-mode-hook '(org-src-babel-configure-edit-buffer
                     org-src-mode-configure-edit-buffer)
 org-agenda-before-write-hook '(org-agenda-add-entry-text)
 org-babel-pre-tangle-hook '(save-buffer)
 org-mode-hook '((closure
                  (org--rds reftex-docstruct-symbol orgtbl-line-start-regexp
                   org-element-greater-elements org-table-coordinate-overlays
                   org-table-auto-blank-field org-clock-history
                   org-agenda-current-date org-with-time org-defdecode org-def
                   org-read-date-inactive org-ans2 org-ans1
                   org-columns-current-fmt-compiled org-clock-current-task
                   org-clock-effort org-agenda-skip-function
                   org-agenda-skip-comment-trees org-agenda-archives-mode
                   org-end-time-was-given org-time-was-given
                   org-log-note-extra org-log-note-purpose
                   org-log-post-message org-last-inserted-timestamp
                   org-last-changed-timestamp
                   org-entry-property-inherited-from org-blocked-by-checkboxes
                   org-state org-agenda-headline-snapshot-before-repeat
                   org-capture-last-stored-marker org-agenda-start-on-weekday
                   org-agenda-buffer-tmp-name
                   clean-buffer-list-kill-buffer-names
                   org-id-link-to-org-use-id org-agenda-buffer-name
                   org-priority-regexp buffer-face-mode-face org-mode-map
                   org-tbl-menu org-org-menu org-struct-menu org-entities
                   org-last-state org-id-track-globally org-clock-start-time
                   texmathp-why remember-data-file
                   org-agenda-tags-todo-honor-ignore-options
                   iswitchb-temp-buflist calc-embedded-open-mode
                   calc-embedded-open-formula calc-embedded-close-formula
                   align-mode-rules-list org-emphasis-alist
                   org-emphasis-regexp-components
                   org-export-registered-backends org-modules
                   org-babel-load-languages org-indent-indentation-per-level
                   org-element-paragraph-separate ffap-url-regexp
                   org-inlinetask-min-level t)
                  nil
                  (add-hook (quote change-major-mode-hook)
                   (quote org-show-all) (quote append) (quote local))
                  )
                 (closure
                  (org-bracket-link-regexp org-src-window-setup *this*
                   org-babel-confirm-evaluate-answer-no
                   org-src-preserve-indentation org-src-lang-modes
                   org-link-file-path-type org-edit-src-content-indentation
                   org-babel-library-of-babel t)
                  nil
                  (add-hook (quote change-major-mode-hook)
                   (quote org-babel-show-result-all) (quote append)
                   (quote local))
                  )
                 org-babel-result-hide-spec org-babel-hide-all-hashes)
 org-bibtex-headline-format-function '(closure
                                       (org-id-locations
                                        org-agenda-search-view-always-boolean
                                        org-agenda-overriding-header t)
                                       (entry) (cdr (assq :title entry)))
 org-archive-hook '(org-attach-archive-delete-maybe)
 org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-show-empty-lines
                  org-optimize-window-after-visibility-change)
 org-confirm-elisp-link-function 'yes-or-no-p
 org-metadown-hook '(org-babel-pop-to-session-maybe)
 org-link-parameters '(("id" :follow org-id-open)
                       ("eww" :follow eww :store org-eww-store-link)
                       ("rmail" :follow org-rmail-open :store
                        org-rmail-store-link)
                       ("mhe" :follow org-mhe-open :store org-mhe-store-link)
                       ("irc" :follow org-irc-visit :store org-irc-store-link
                        :export org-irc-export)
                       ("info" :follow org-info-open :export org-info-export
                        :store org-info-store-link)
                       ("gnus" :follow org-gnus-open :store
                        org-gnus-store-link)
                       ("docview" :follow org-docview-open :export
                        org-docview-export :store org-docview-store-link)
                       ("bibtex" :follow org-bibtex-open :store
                        org-bibtex-store-link)
                       ("bbdb" :follow org-bbdb-open :export org-bbdb-export
                        :complete org-bbdb-complete-link :store
                        org-bbdb-store-link)
                       ("w3m" :store org-w3m-store-link) ("file+sys")
                       ("file+emacs") ("doi" :follow org--open-doi-link)
                       ("elisp" :follow org--open-elisp-link)
                       ("file" :complete org-file-complete-link)
                       ("ftp" :follow
                        (lambda (path) (browse-url (concat "ftp:" path))))
                       ("help" :follow org--open-help-link)
                       ("http" :follow
                        (lambda (path) (browse-url (concat "http:" path))))
                       ("https" :follow
                        (lambda (path) (browse-url (concat "https:" path))))
                       ("mailto" :follow
                        (lambda (path) (browse-url (concat "mailto:"; path))))
                       ("news" :follow
                        (lambda (path) (browse-url (concat "news:"; path))))
                       ("shell" :follow org--open-shell-link))
 org-clock-out-hook '(org-clock-remove-empty-clock-drawer)
 )