Setup world clock

README.org

@@ -1355,6 +1355,28 @@ execvp("emacsclient", ("-n", payload))
 2. [[https://www.hammerspoon.org/][Hammerspoon]]
 3. [[https://vritser.github.io/posts/capture-anywhere/][Emacs Capture Anywhere]]
 
+* [[info:emacs#Calendar/Diary][Calendar, Diary, and Time (info)]]
+:PROPERTIES:
+:CUSTOM_ID: sec:time
+:END:
+
+#+caption[Set =world-clock= options]:
+#+caption: Set =world-clock= options.
+#+name: lst:set-world-clock-options
+#+begin_src emacs-lisp -n :results silent
+(with-eval-after-load 'time
+  (setopt world-clock-list
+          '(("America/Los_Angeles" "Seattle")
+            ("America/New_York" "New York")
+            ("Europe/London" "London")
+            ("Europe/Paris" "Paris")
+            ("Europe/Istanbul" "Istanbul")
+            ("Asia/Jerusalem" "Jerusalem")
+            ("Asia/Singapore" "Singapore")
+            ("Asia/Tokyo" "Tokyo"))
+          world-clock-time-format "%a %d %b %R %z"))
+#+end_src
+
 * Tools to handle buffers and modes
 :PROPERTIES:
 :CUSTOM_ID: sec:buffer-mode-tools
@@ -2192,7 +2214,12 @@ configuration objectives:
 :END:
 
 The [[https://org-babel.readthedocs.io/en/latest/][Org Babel reference card]] complements section [[info:org#Working with Source Code][Working with Source Code (info)]]
-of the [[info:org#Top][Org (info)]] manual.
+of the [[info:org#Top][Org (info)]] manual. Here are links to Org-mode videos:
+1. [[yt:o6rE18Mxu9U][Analyze Your Time with Org Mode Clocktables]]
+2. [[yt:EgOBBiomfGo][Basic Task Management with Org: Checklists, TODOs, and Org-Agenda]]
+3. [[yt:oJTwQvgfgMM][Emacs Org-mode: a system for note-taking and project planning]]
+4. [[yt:SzA2YODtgK4][Getting Started With Org Mode]]
+5. [[yt:zqAYHWv36X0][Org Mode Time and Task Tools]]
 
 *** [[info:org#Activation][Org activation (info)]]
 :PROPERTIES:
@@ -2216,7 +2243,7 @@ of the [[info:org#Top][Org (info)]] manual.
 :CUSTOM_ID: sec:setup-org
 :END:
 
-I have split the initial [[https://orgmode.org/][Org-mode]] setup over thirteen listings.  Here, follows a
+I have split the initial [[https://orgmode.org/][Org-mode]] setup over fourteen listings.  Here, follows a
 list detailing and motivating each listing:
 1. Listing [[lst:set-org-options]] handles basic [[https://orgmode.org/][Org-mode]] options.
 2. Listing [[lst:undo-org-ctags]] undoes ~org-ctags~.  See [[https://list.orgmode.org/87mt43agk6.fsf@localhost/][org-ctags land grab]] for
@@ -2252,25 +2279,26 @@ list detailing and motivating each listing:
 #+begin_src emacs-lisp -n :results silent
 (with-eval-after-load 'org
   (setopt
-   org-babel-load-languages
-   `((calc . t)
-     (dot . ,(fboundp 'grapviz-dot-mode))
-     (emacs-lisp . t)
-     (eshell . t)
-     (fortran . t)
-     (gnuplot . ,(fboundp 'gnuplot-mode))
-     (julia . t)
-     (latex . t)
-     (lilypond . ,(fboundp 'lilypond-mode))
-     (lisp . t)
-     (lua . ,(fboundp 'lua-mode))
-     (org . t)
-     (perl . t)
-     ;; Beware of circular Python dependencies.
-     (python . t)
-     (ruby . ,(fboundp 'ruby-mode))
-     (shell . t))
-   ;; Removal of `svg4css' from `org-export-backends' to silence warnings.
+   org-agenda-files '("gerard.org")
+   org-agenda-include-diary t
+   org-babel-load-languages `((calc . t)
+                              (dot . ,(fboundp 'grapviz-dot-mode))
+                              (emacs-lisp . t)
+                              (eshell . t)
+                              (fortran . t)
+                              (gnuplot . ,(fboundp 'gnuplot-mode))
+                              (julia . t)
+                              (latex . t)
+                              (lilypond . ,(fboundp 'lilypond-mode))
+                              (lisp . t)
+                              (lua . ,(fboundp 'lua-mode))
+                              (org . t)
+                              (perl . t)
+                              ;; Beware of circular Python dependencies.
+                              (python . t)
+                              (ruby . ,(fboundp 'ruby-mode))
+                              (shell . t))
+   org-directory "~/org"
    org-export-backends '(ascii beamer html icalendar latex md odt texinfo)
    org-file-apps '((auto-mode . emacs)
                    (directory . emacs)