Simplify a few timestamps

* lisp/calendar/time-date.el (safe-date-to-time):
* lisp/calendar/timeclock.el (timeclock-generate-report):
* lisp/epg.el (epg--start):
* lisp/gnus/gnus-demon.el (gnus-demon-nntp-close-connection):
* lisp/gnus/gnus-util.el (gnus-date-get-time):
* lisp/gnus/nnheader.el (nnheader-last-message-time):
* lisp/gnus/nnrss.el (nnrss-request-expire-articles):
* lisp/vc/ediff-util.el (ediff-command-begin-time)
(ediff-calc-command-time, ediff-profile):
Prefer an integer like 0 to a timestamp list like (0 0)
where either will do.

8 files changed, 13 insertions, 13 deletions

diff --git a/lisp/calendar/time-date.el b/lisp/calendar/time-date.el
index d1afd8ce95a..7c99d05dc3f 100644
--- a/lisp/calendar/time-date.el
+++ b/lisp/calendar/time-date.el
@@ -256,10 +256,10 @@ Returns a floating point number."
 ;;;###autoload
 (defun safe-date-to-time (date)
   "Parse a string DATE that represents a date-time and return a time value.
-If DATE is malformed, return a time value of zeros."
+If DATE is malformed, return a time value of zero."
   (condition-case ()
       (date-to-time date)
-    (error '(0 0))))
+    (error 0)))
 
 
 ;;;###autoload
diff --git a/lisp/calendar/timeclock.el b/lisp/calendar/timeclock.el
index 7bdaf7ceff6..6b6cc517a20 100644
--- a/lisp/calendar/timeclock.el
+++ b/lisp/calendar/timeclock.el
@@ -1247,7 +1247,7 @@ HTML-P is non-nil, HTML markup is added."
 	       (time-out (vector (list t) (list t) (list t) (list t) (list t)))
 	       (breaks   (vector (list t) (list t) (list t) (list t) (list t)))
 	       (workday  (vector (list t) (list t) (list t) (list t) (list t)))
-	       (lengths  (vector '(0 0) thirty-days-ago three-months-ago
+	       (lengths  (vector 0 thirty-days-ago three-months-ago
 				 six-months-ago one-year-ago)))
 	  ;; collect statistics from complete timelog
 	  (dolist (day day-list)
diff --git a/lisp/epg.el b/lisp/epg.el
index c5d946cb76c..c3c26badbba 100644
--- a/lisp/epg.el
+++ b/lisp/epg.el
@@ -606,7 +606,7 @@ callback data (if any)."
 	 process
 	 terminal-name
 	 agent-file
-	 (agent-mtime '(0 0 0 0)))
+	 (agent-mtime 0))
     ;; Set GPG_TTY and TERM for pinentry-curses.  Note that we can't
     ;; use `terminal-name' here to get the real pty name for the child
     ;; process, though /dev/fd/0" is not portable.
@@ -633,7 +633,7 @@ callback data (if any)."
       (setq agent-file (match-string 1 agent-info)
 	    agent-mtime (or (file-attribute-modification-time
 			     (file-attributes agent-file))
-			    '(0 0 0 0))))
+			    0)))
     (if epg-debug
 	(save-excursion
 	  (unless epg-debug-buffer
diff --git a/lisp/gnus/gnus-demon.el b/lisp/gnus/gnus-demon.el
index d9da8529ebe..f6cfd727f78 100644
--- a/lisp/gnus/gnus-demon.el
+++ b/lisp/gnus/gnus-demon.el
@@ -222,7 +222,7 @@ minutes, the connection is closed."
 
 (defun gnus-demon-nntp-close-connection ()
   (save-window-excursion
-    (when (time-less-p '(0 300) (time-since nntp-last-command-time))
+    (when (time-less-p 300 (time-since nntp-last-command-time))
       (nntp-close-server))))
 
 (defun gnus-demon-add-scanmail ()
diff --git a/lisp/gnus/gnus-util.el b/lisp/gnus/gnus-util.el
index dda2b4ff5fc..ea11642cf41 100644
--- a/lisp/gnus/gnus-util.el
+++ b/lisp/gnus/gnus-util.el
@@ -383,7 +383,7 @@ Cache the result as a text property stored in DATE."
   ;; Either return the cached value...
   `(let ((d ,date))
      (if (equal "" d)
-	 '(0 0)
+	 0
        (or (get-text-property 0 'gnus-time d)
 	   ;; or compute the value...
 	   (let ((time (safe-date-to-time d)))
diff --git a/lisp/gnus/nnheader.el b/lisp/gnus/nnheader.el
index ab57bd7eedd..92df41ea829 100644
--- a/lisp/gnus/nnheader.el
+++ b/lisp/gnus/nnheader.el
@@ -1055,7 +1055,7 @@ See `find-file-noselect' for the arguments."
 				     (or ,end (point-max)))
 		'(buffer-string)))))
 
-(defvar nnheader-last-message-time '(0 0))
+(defvar nnheader-last-message-time 0)
 (defun nnheader-message-maybe (&rest args)
   (let ((now (current-time)))
     (when (time-less-p 1 (time-subtract now nnheader-last-message-time))
diff --git a/lisp/gnus/nnrss.el b/lisp/gnus/nnrss.el
index f740af3b6d1..5047be1a6a5 100644
--- a/lisp/gnus/nnrss.el
+++ b/lisp/gnus/nnrss.el
@@ -325,7 +325,7 @@ for decoding when the cdr that the data specify is not available.")
 	       (nnmail-expired-article-p
 		group
 		(if (listp (setq days (nth 1 e))) days
-		  (days-to-time (- days (time-to-days '(0 0)))))
+		  (days-to-time (- days (time-to-days 0))))
 		force))
 	  (setq nnrss-group-data (delq e nnrss-group-data)
 		changed t)
diff --git a/lisp/vc/ediff-util.el b/lisp/vc/ediff-util.el
index 040a9a63c5a..3641b75251d 100644
--- a/lisp/vc/ediff-util.el
+++ b/lisp/vc/ediff-util.el
@@ -4094,11 +4094,11 @@ Mail anyway? (y or n) ")
 
 ;;; Debug
 
-(ediff-defvar-local ediff-command-begin-time '(0 0 0))
+(ediff-defvar-local ediff-command-begin-time 0)
 
 ;; calculate time used by command
 (defun ediff-calc-command-time ()
-  (or (equal ediff-command-begin-time '(0 0 0))
+  (or (equal ediff-command-begin-time 0)
       (message "Elapsed time: %g second(s)"
 	       (float-time (time-since ediff-command-begin-time)))))
 
@@ -4112,10 +4112,10 @@ Mail anyway? (y or n) ")
 
   (let ((pre-hook 'pre-command-hook)
 	(post-hook 'post-command-hook))
-    (if (not (equal ediff-command-begin-time '(0 0 0)))
+    (if (not (equal ediff-command-begin-time 0))
 	(progn (remove-hook pre-hook 'ediff-save-time)
 	       (remove-hook post-hook 'ediff-calc-command-time)
-	       (setq ediff-command-begin-time '(0 0 0))
+	       (setq ediff-command-begin-time 0)
 	       (message "Ediff profiling disabled"))
       (add-hook pre-hook 'ediff-save-time t 'local)
       (add-hook post-hook 'ediff-calc-command-time nil 'local)