For pkgs that use date(1) as version, use UTC time.

srcpkgs/gnome-shell-extension-weather/template

@@ -1,6 +1,6 @@
 # Template file for 'gnome-shell-extension-weather'
 pkgname=gnome-shell-extension-weather
-version="$(date +%Y%m%d)"
+version="$(date -u +%Y%m%d)"
 build_style=gnu_configure
 short_desc="Simple extension for displaying weather notifications in GNOME Shell."
 maintainer="davehome <davehome@redthumb.info.tm>"

srcpkgs/linux-firmware/template

@@ -1,6 +1,6 @@
 # Template file for 'linux-firmware'
 pkgname=linux-firmware
-version="$(date +%Y%m%d)"
+version="$(date -u +%Y%m%d)"
 build_style=custom-install
 short_desc="Binary firmware blobs for the Linux kernel"
 maintainer="Juan RP <xtraeme@gmail.com>"

srcpkgs/rhythmbox/template

@@ -1,6 +1,6 @@
 # Template file for 'rhythmbox'.
 pkgname=rhythmbox
-version="2.90.1.git$(date +%Y%m%d)"
+version="2.90.1.git$(date -u +%Y%m%d)"
 homepage="http://www.rhythmbox.org"
 #distfiles="${GNOME_SITE}/$pkgname/0.13/$pkgname-$version.tar.bz2"
 build_style=gnu_configure

srcpkgs/xbps-devel/template

@@ -1,6 +1,6 @@
 # Template file for 'xbps'
 pkgname=xbps-devel
-version="1.$(date +%Y%m%d)"
+version="$(date -u +%Y%m%d)"
 build_style=configure
 configure_args="--prefix=/ --includedir=/usr/include
 --datadir=/usr/share --mandir=/usr/share/man --with-pie"

srcpkgs/xf86-video-ati-git-snapshot/template

@@ -1,6 +1,6 @@
 # Template build file for 'xf86-video-ati'.
 pkgname=xf86-video-ati-git-snapshot
-version="$(date +%Y%m%d)"
+version="$(date -u +%Y%m%d)"
 build_style=gnu_configure
 short_desc="Xorg ATI Radeon video driver (git snapshot)"
 maintainer="Juan RP <xtraeme@gmail.com>"