diff options
Diffstat (limited to 'lisp/org/org-clock.el')
| -rw-r--r-- | lisp/org/org-clock.el | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/lisp/org/org-clock.el b/lisp/org/org-clock.el index ff32e28d1e8..9be0d5bc1ff 100644 --- a/lisp/org/org-clock.el +++ b/lisp/org/org-clock.el @@ -2239,8 +2239,18 @@ have priority." (let* ((start (pcase key (`interactive (org-read-date nil t nil "Range start? ")) ;; In theory, all clocks started after the dawn of - ;; humanity. - (`untilnow (encode-time 0 0 0 0 0 -50000)) + ;; humanity. However, the platform's clock + ;; support might not go back that far. Choose the + ;; POSIX timestamp -2**41 (approximately 68,000 + ;; BCE) if that works, otherwise -2**31 (1901) if + ;; that works, otherwise 0 (1970). Going back + ;; billions of years would loop forever on Mac OS + ;; X 10.6 with Emacs 26 and earlier (Bug#27736). + (`untilnow + (let ((old 0)) + (dolist (older '((-32768 0) (-33554432 0)) old) + (when (ignore-errors (decode-time older)) + (setq old older))))) (_ (encode-time 0 m h d month y)))) (end (pcase key (`interactive (org-read-date nil t nil "Range end? ")) |