From f49334c21b639fed7bceb7b39bec96b7c017cff3 Mon Sep 17 00:00:00 2001
From: Thierry Pouplier <thierrypouplier@gmail.com>
Date: Tue, 11 Aug 2026 11:08:25 -0400
Subject: [PATCH] feat: show ISO week numbers in calendar

---
 doom/.config/doom/README.org | 14 ++++++++++++++
 doom/.config/doom/config.el  | 13 +++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/doom/.config/doom/README.org b/doom/.config/doom/README.org
index 99e7645..2a908fe 100644
--- a/doom/.config/doom/README.org
+++ b/doom/.config/doom/README.org
@@ -744,6 +744,19 @@ org-agenda-files (seq-uniq org-agenda-files)
     (interactive)
     (let ((date (calendar-cursor-to-date)))
       (org-roam-dailies-goto-date date)))
+  (setq calendar-week-start-day 1)
+
+  (setq calendar-intermonth-text
+        '(propertize
+          (format "%2d"
+                  (car
+                   (calendar-iso-from-absolute
+                    (calendar-absolute-from-gregorian (list month day year)))))
+          'font-lock-face 'font-lock-warning-face))
+
+  (setq calendar-intermonth-header
+        (propertize "W#" 
+                    'font-lock-face 'font-lock-keyword-face))
   )
 
 ;; Bind RET in calendar mode to open daily note instead of default exit
@@ -756,6 +769,7 @@ org-agenda-files (seq-uniq org-agenda-files)
   (define-key org-read-date-minibuffer-local-map (kbd "M-k") (kbd "S-<up>"))
   (define-key org-read-date-minibuffer-local-map (kbd "M-l") (kbd "S-<right>")))
 #+end_src
+
 ** +Org Superstar mode+
 org-modern instead
 
diff --git a/doom/.config/doom/config.el b/doom/.config/doom/config.el
index 149cc1f..a9e02c1 100644
--- a/doom/.config/doom/config.el
+++ b/doom/.config/doom/config.el
@@ -585,6 +585,19 @@ org-agenda-files (seq-uniq org-agenda-files)
     (interactive)
     (let ((date (calendar-cursor-to-date)))
       (org-roam-dailies-goto-date date)))
+  (setq calendar-week-start-day 1)
+
+  (setq calendar-intermonth-text
+        '(propertize
+          (format "%2d"
+                  (car
+                   (calendar-iso-from-absolute
+                    (calendar-absolute-from-gregorian (list month day year)))))
+          'font-lock-face 'font-lock-warning-face))
+
+  (setq calendar-intermonth-header
+        (propertize "W#" 
+                    'font-lock-face 'font-lock-keyword-face))
   )
 
 ;; Bind RET in calendar mode to open daily note instead of default exit