diff --git a/lsio/unifi-controller/docker-compose.yaml b/lsio/unifi-controller/docker-compose.yaml
index d3aae66..d6bd306 100644
--- a/lsio/unifi-controller/docker-compose.yaml
+++ b/lsio/unifi-controller/docker-compose.yaml
@@ -13,6 +13,8 @@ services:
       - PUID=${PUID:-1024}
       # for GroupID
       - PGID=${PGID:-100}
+      # Specify a timezone to use for example Europe/Amsterdam
+      - TZ=${TZ:-Europe/Amsterdam}
       # Optionally change the Java memory limit. Set to `default` to reset to default
       - MEM_LIMIT=1024 # optional
       # Optionally change the Java initial/minimum memory. Set to `default` to reset to default
diff --git a/lsio/unifi-controller/docker-run.sh b/lsio/unifi-controller/docker-run.sh
index f087ed6..d53e404 100644
--- a/lsio/unifi-controller/docker-run.sh
+++ b/lsio/unifi-controller/docker-run.sh
@@ -7,6 +7,7 @@ docker run -d \
   --name=unifi-controller \
   -e PUID=${PUID:-1024} `# for UserID` \
   -e PGID=${PGID:-100} `# for GroupID` \
+  -e TZ=${TZ:-Europe/Amsterdam} `# Specify a timezone to use for example Europe/Amsterdam` \
   -e MEM_LIMIT=1024 `# optional` `# Optionally change the Java memory limit. Set to `default` to reset to default` \
   -e MEM_STARTUP=1024 `# optional` `# Optionally change the Java initial/minimum memory. Set to `default` to reset to default` \
   -p 8443:8443 `# Unifi web admin port` \