Function: decoded-time-dst

decoded-time-dst is a byte-compiled function defined in simple.el.gz.

Signature

(decoded-time-dst CL-X)

Documentation

Access slot "dst" of decoded-time struct CL-X.

This is t if daylight saving time is in effect, nil if it is not in effect, and -1 if daylight saving information is not available. As a special case, return an unspecified value when given a list too short to have a dst element.

Probably introduced at or before Emacs version 27.1.

Source Code

;; Defined in /usr/src/emacs/lisp/simple.el.gz
;; Document that decoded-time-dst is problematic on 6-element lists.
;; It should return -1 indicating unknown DST, but currently returns
;; nil indicating standard time.
(put 'decoded-time-dst 'function-documentation
     "Access slot \"dst\" of `decoded-time' struct CL-X.
This is t if daylight saving time is in effect, nil if it is not
in effect, and -1 if daylight saving information is not available.
As a special case, return an unspecified value when given a list
too short to have a dst element.

(fn CL-X)")