Variable: org-ts-regexp-both
org-ts-regexp-both is a variable defined in org.el.gz.
Value
"[[<]\\([[:digit:]]\\{4\\}-[[:digit:]]\\{2\\}-[[:digit:]]\\{2\\}\\(?: .*?\\)?\\)[]>]"
Documentation
Regular expression for fast time stamp matching.
Source Code
;; Defined in /usr/src/emacs/lisp/org/org.el.gz
(defconst org-ts-regexp-both (format "[[<]\\(%s\\)[]>]" org-ts--internal-regexp)
"Regular expression for fast time stamp matching.")