Run "TZ=UTC0 admin/update-copyright $(git ls-files)".

* doc/emacs/calendar.texi (Calendar Systems)
* doc/lispref/os.texi (Time Conversion):
Prefer "BC" to "B.C." since the documentation generally uses "BC".
* doc/misc/emacs-mime.texi (time-date):
* lisp/calendar/time-date.el (date-to-day, time-to-days):
In the doc string, state the day origin more clearly, and more
consistently with the rest of the documentation.
* src/timefns.c (Fdecode_time): State the year origin in
the doc string.

* lisp/apropos.el (apropos-do-all):
* lisp/auth-source-pass.el (auth-source-pass--select-from-entries):
* lisp/auth-source.el (auth-source-user-or-password):
* lisp/calc/calc-forms.el (math-tzone-names):
* lisp/calendar/diary-lib.el (diary-face-attrs)
(diary-mark-entries-1):
* lisp/cedet/cedet-files.el (cedet-files-list-recursively):
* lisp/cedet/ede.el (ede-constructing, ede-deep-rescan):
* lisp/cedet/ede/cpp-root.el (ede-cpp-root-header-file-p):
* lisp/cedet/ede/proj.el (ede-proj-target-makefile):
* lisp/cedet/inversion.el (inversion-check-version)
(inversion-test):
* lisp/cedet/mode-local.el (mode-local-map-file-buffers):
* lisp/cedet/semantic/complete.el (semantic-displayer-ghost):
* lisp/cedet/semantic/db-find.el (semanticdb-find-translate-path-default):
* lisp/cedet/semantic/db.el (semanticdb-table)
(semanticdb-search-system-databases):
* lisp/cedet/semantic/imenu.el (semantic-imenu-index-directory):
* lisp/cedet/semantic/java.el (semantic-java-doc-keywords-map):
* lisp/cedet/semantic/lex-spp.el (semantic-lex-spp-use-headers-flag):
* lisp/cedet/semantic/lex.el (semantic-lex-make-keyword-table)
(semantic-lex-make-type-table, semantic-lex-debug-analyzers):
* lisp/cedet/semantic/tag-ls.el (semantic-tag-abstract-p)
(semantic-tag-leaf-p, semantic-tag-static-p)
(semantic-tag-prototype-p):
* lisp/dnd.el (dnd-open-remote-file-function, dnd-open-local-file):
* lisp/emacs-lisp/eieio-opt.el (eieio-build-class-alist)
(eieio-read-class, eieio-read-subclass):
* lisp/emacs-lisp/generator.el (cps--replace-variable-references)
(cps--handle-loop-for):
* lisp/erc/erc-dcc.el (erc-dcc-list, erc-dcc-member, erc-dcc-server)
(erc-dcc-auto-mask-p, erc-dcc-get-file, erc-dcc-chat-accept):
* lisp/eshell/em-pred.el (eshell-pred-file-type):
* lisp/faces.el (defined-colors-with-face-attributes):
* lisp/font-core.el (font-lock-mode):
* lisp/frame.el (frame-restack):
* lisp/net/shr.el (shr-image-animate):
* lisp/org/org-agenda.el (org-agenda-change-all-lines)
(org-agenda-today-p):
* lisp/org/org-id.el (org-id-get):
* lisp/org/org.el (org-highlight-latex-and-related)
(org--valid-property-p):
* lisp/org/ox-beamer.el (org-beamer--get-label):
* lisp/org/ox-latex.el (org-latex--caption-above-p):
* lisp/org/ox-odt.el (org-odt--copy-image-file)
(org-odt--copy-formula-file):
* lisp/org/ox.el (org-export-with-timestamps):
* lisp/progmodes/verilog-mode.el (verilog-indent-declaration-macros):
* lisp/ses.el (ses-file-format-extend-parameter-list):
* lisp/term.el (ansi-term):
* lisp/textmodes/bibtex.el (bibtex-no-opt-remove-re)
(bibtex-beginning-of-first-entry, bibtex-autokey-get-title)
(bibtex-read-key, bibtex-initialize):
* lisp/textmodes/flyspell.el (flyspell-word):
* lisp/view.el (view-mode-exit):
* src/composite.c:
* src/floatfns.c (Fisnan): Fix typos in docstrings.

This adds FIXMEs to areas where Lisp code should support
subsecond information in broken-down timestamps.
It also fixes some unnecessary truncation of timestamps, and
ports the code to a hypothetical future Emacs version where
(decode-time) returns subsecond timestamps by default.
* lisp/calc/calc-forms.el (calc-time, math-iso-dt-to-date)
(calcFunc-now):
* lisp/calendar/icalendar.el (icalendar--add-decoded-times):
* lisp/calendar/iso8601.el (iso8601-parse-interval):
Truncate seconds to an integer, and add a FIXME about
subseconds support.
* lisp/calendar/icalendar.el (icalendar--decode-isodatetime)
(icalendar--decode-isoduration):
Add a FIXME about subseconds support.
* lisp/gnus/gnus-delay.el (gnus-delay-article):
Don’t truncate seconds to an integer, as there’s no need
to do that here.
* lisp/gnus/gnus-util.el (gnus-seconds-today)
(gnus-seconds-month, gnus-seconds-year):
* lisp/gnus/message.el (message-make-expires-date):
* lisp/org/org-timer.el (org-timer-show-remaining-time):
* lisp/vc/ediff-mult.el (ediff-format-date):
Truncate seconds to an integer, as that’s what’s wanted here.
* lisp/midnight.el (midnight-next):
Ceiling seconds to an integer, as that’s what wanted here.

* lisp/calc/calc-forms.el (math-absolute-from-gregorian-dt):
Rewrite in a way that I understand, and that actually seems to work.
(math-absolute-from-julian-dt): Use Julian, not Gregorian, leap year
rules for counting days within a year.
(math-julian-date-beginning, math-julian-date-beginning-int):
Change constants to be consistent with their doc strings and the code:
use Rata Die epoch at Dec 31, 1 BC Gregorian proleptic, not Julian.
* doc/misc/calc.texi (Date Forms): Correct difference between Julian
Day and Rata Die.
* test/lisp/calc/calc-tests.el (calc-test-calendar): New test.

* lisp/calc/calc-forms.el (calc-time): Fix previous decoded time
change.

* lisp/calc/calc-forms.el (calc-time, math-this-year)
(calcFunc-now): Use decoded time accessors.

* lisp/calc/calc-forms.el (calendar-current-time-zone-cache):
Remove defvar.
(math-get-calendar-tzinfo): Simplify and do not reach
into caldst’s cache.

* lisp/calc/calc-forms.el (math-calendar-tzinfo): Make timezone
calculation work east of Greenwich.  Fix proposed by David O'Shea
(bug#34075).

prompt.