2 files changed, 24 insertions, 0 deletions

diff --git a/etc/ChangeLog b/etc/ChangeLog
index 983fcaa28eb..ed8c345eef5 100644
--- a/etc/ChangeLog
+++ b/etc/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-17  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Improve time stamp handling, and be more consistent about it.
+        * NEWS: Document the changes.
+
 2014-11-14  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
         * NEWS: Mention the new `M-s M-s' keystroke.
diff --git a/etc/NEWS b/etc/NEWS
index b0e08d46819..cb34e9b4613 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -377,6 +377,25 @@ optional repeat-count argument.
 *** New macros `thread-first' and `thread-last' allow threading a form
     as the first or last argument of subsequent forms.
 
++++
+** Time-related changes:
+
+*** Time-related functions now consistently accept numbers
+(representing seconds since the epoch) and nil (representing the
+current time) as well as the usual list-of-integer representation.
+Affected functions include `current-time-string', `current-time-zone',
+`decode-time', `float-time', `format-time-string', `seconds-to-time',
+`time-add', `time-less-p', `time-subtract', `time-to-day-in-year',
+`time-to-days', and `time-to-seconds'.
+
+*** The `encode-time-value' and `with-decoded-time-value' macros have
+been obsoleted.
+
+*** `calendar-next-time-zone-transition', `time-add', and
+`time-subtract' no longer return time values in the obsolete and
+undocumented integer-pair format.  Instead, they return a list of two
+integers.
+
 
 * Changes in Frames and Windows Code in Emacs 25.1