From e894be29ab171ea96c55c149c6720cb7d6123df2 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Mon, 10 Jun 2019 10:04:59 +1200
Subject: Use strftime() for date printing

---
 vim/vimrc | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/vim/vimrc b/vim/vimrc
index 949c1f7b..57c685f9 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -1171,12 +1171,25 @@ nnoremap <Leader>C
 xnoremap <Leader>C
       \ :<C-U>setlocal cursorcolumn! cursorcolumn?<CR>gv
 
-" Leader,d inserts the local date (POSIX date)
+" Set up a quick command-function pair to run a command with the UTC timezone,
+" in this case, for my date-printing mappings.  Is there a nicer way to do
+" this?  I couldn't find one.
+"
+function! UTC(command) abort
+  let tz = expand('$TZ')
+  let $TZ = 'UTC'
+  execute a:command
+  let $TZ = tz
+endfunction
+command -complete=command -nargs=1 UTC
+      \ call UTC(<q-args>)
+
+" Leader,d inserts the local date (RFC 2822)
 nnoremap <Leader>d
-      \ :read !date<CR>
-" Leader,D inserts the UTC date (POSIX date)
+      \ :<C-U>put=strftime('%a, %d %b %Y %T %z')<CR>
+" Leader,D inserts the UTC date (RFC 2822)
 nnoremap <Leader>D
-      \ :read !date -u<CR>
+      \ :<C-U>UTC put=strftime('%a, %d %b %Y %T %z')<CR>
 
 " Leader,e forces a buffer to be editable
 nnoremap <Leader>e
-- 
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