Variable: display-time-help-echo-format
display-time-help-echo-format is a customizable variable defined in
time.el.gz.
Value
"%a %b %e, %Y"
Documentation
Format for the help echo when hovering over the time in the mode line.
Use the function customize-variable to choose a common format, and/or
see the function format-time-string for an explanation of the syntax.
This variable was added, or its default value changed, in Emacs 31.1.
Probably introduced at or before Emacs version 31.1.
Source Code
;; Defined in /usr/src/emacs/lisp/time.el.gz
(defcustom display-time-help-echo-format "%a %b %e, %Y"
"Format for the help echo when hovering over the time in the mode line.
Use the function `customize-variable' to choose a common format, and/or
see the function `format-time-string' for an explanation of the syntax."
:version "31.1"
:type `(choice
,@(mapcar #'(lambda (fmt)
(list 'const
':tag (format-time-string fmt 0 "UTC") fmt))
'("%a %b %e, %Y" "%F (%a)" "%a %D"))
(string :tag "Format string")))