org-ts-regexp3

org-ts-regexp3 is a variable defined in `org.el'.
Its value is

"[[<]\\(\\([0-9]\\{4\\}\\)-\\([0-9]\\{2\\}\\)-\\([0-9]\\{2\\}\\) *\\([^]+0-9>
\n -]*\\)\\( \\([0-9]\\{1,2\\}\\):\\([0-9]\\{2\\}\\)\\)?\\)[^]>\n]\\{0,16\\}[]>]"

• This variable may be risky if used as a file-local variable.

Documentation:
Regular expression matching time stamps (also [..]), with groups.