Package: notmuch-emacs Version: 0.18.1-1 Severity: normal So, I've struggled with coming up with a citation line format: '(message-citation-line-format "On %Y-%m-%d %T %z, %N wrote:") '(message-citation-line-function (quote message-insert-formatted-citation-line)) But it localizes the timezone of datestring, rather than simply copying the datestring from the replied to message. Several other mail clients, including "notmuch reply", seem to simply copy the datestring including the timezone data, it quotes using: On Sat, 23 Aug 2014 12:36:53 +0600, Example User wrote: But notmuch-emacs does changes the datestring to my locally configured timezone. As far as I can tell, it can either be configured to use UTC, or my local timezone only. David Bremner suggests this may need to be fixed upstream. live well, vagrant -- System Information: Debian Release: jessie/sid APT prefers testing APT policy: (500, 'testing'), (120, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 armhf Kernel: Linux 3.14-2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages notmuch-emacs depends on: ii emacs23 23.4+1-4.1+b1 ii emacs24-nox [emacs24] 24.3+1-4+b1 ii emacsen-common 2.0.8 ii notmuch 0.18.1-1 notmuch-emacs recommends no packages. notmuch-emacs suggests no packages. -- no debconf information