diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ba16e6..6026511 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@
 
 Summary of release changes.
 
+### 2.2.1 - Unreleased
+
+- Adds setting PHP `date.timezone` to `PHP_OPTIONS_DATE_TIMEZONE` into service configuration; removes dependency on app package configuration.
+
 ### 2.2.0 - 2019-07-20
 
 - Updates source image to [2.6.0](https://github.com/jdeathe/centos-ssh/releases/tag/2.6.0).
diff --git a/Dockerfile b/Dockerfile
index 0e8dde7..14516c2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -165,7 +165,7 @@ RUN useradd -r -M -d /var/www/app -s /sbin/nologin app \
 	&& sed -r \
 		-e 's~^;(user_ini.filename =)$~\1~g' \
 		-e 's~^;(cgi.fix_pathinfo=1)$~\1~g' \
-		-e 's~^;(date.timezone =)$~\1 UTC~g' \
+		-e 's~^;?(date.timezone( )?=).*$~\1\2"${PHP_OPTIONS_DATE_TIMEZONE:-UTC}"~g' \
 		-e 's~^(expose_php = )On$~\1Off~g' \
 		-e 's~^;(realpath_cache_size = ).*$~\14096k~' \
 		-e 's~^;(realpath_cache_ttl = ).*$~\1600~' \