diff --git a/addons_updater/CHANGELOG.md b/addons_updater/CHANGELOG.md
index 74ed498dd..2d9f32a66 100644
--- a/addons_updater/CHANGELOG.md
+++ b/addons_updater/CHANGELOG.md
@@ -1,4 +1,5 @@
-## description: Automatic addons update by aligning version tag with upstream releases 3.19.15 (08-12-2025)
+## description: Automatic addons update by aligning version tag with upstream releases 3.19.16 (2026-01-10)
+- Add config option to choose ISO8601 (YYYY-MM-DD) or DD-MM-YYYY dates for last_update/changelog entries
 - The Home Assistant project has deprecated support for the armv7, armhf and i386 architectures. Support wil be fully dropped in the upcoming Home Assistant 2025.12 release
 - Improve Codeberg handling with a Gitea API fallback when lastversion lacks custom host support
 
diff --git a/addons_updater/README.md b/addons_updater/README.md
index 77b7fd84b..5841e7d77 100644
--- a/addons_updater/README.md
+++ b/addons_updater/README.md
@@ -81,6 +81,7 @@ repository: 'name/repo' coming from github
 gituser: your github username
 gitapi: your github api token(classic) https://github.com/settings/tokens
 gitmail: your github email
+date_iso8601: true # use ISO8601 dates (YYYY-MM-DD) instead of DD-MM-YYYY
 verbose: 'false'
 ```
 
@@ -91,6 +92,7 @@ repository: alexbelgium/hassio-addons
 gituser: your github username
 gitapi: your github api token
 gitmail: your github email
+date_iso8601: true
 verbose: "false"
 ```
 
diff --git a/addons_updater/config.yaml b/addons_updater/config.yaml
index a7090fdf5..69475c4ed 100644
--- a/addons_updater/config.yaml
+++ b/addons_updater/config.yaml
@@ -11,11 +11,13 @@ map:
   - addon_config:rw
 name: Repository Updater
 options:
+  date_iso8601: true
   env_vars: []
   gitapi: gitapi
   gituser: gituser
   repository: alexbelgium/hassio-addons
 schema:
+  date_iso8601: bool?
   env_vars:
     - name: match(^[A-Za-z0-9_]+$)
       value: str?
@@ -28,4 +30,4 @@ schema:
 slug: updater
 udev: true
 url: https://github.com/alexbelgium/hassio-addons/tree/master/addons_updater
-version: "3.19.15"
+version: "3.19.16"
diff --git a/addons_updater/rootfs/etc/cont-init.d/99-run.sh b/addons_updater/rootfs/etc/cont-init.d/99-run.sh
index b6a3eb7a4..d09f05ddb 100755
--- a/addons_updater/rootfs/etc/cont-init.d/99-run.sh
+++ b/addons_updater/rootfs/etc/cont-init.d/99-run.sh
@@ -14,6 +14,11 @@ fi
 
 bashio::log.info "Checking status of referenced repositories..."
 VERBOSE=$(bashio::config 'verbose')
+if bashio::config.true "date_iso8601"; then
+    DATE_FORMAT="+%Y-%m-%d"
+else
+    DATE_FORMAT="+%d-%m-%Y"
+fi
 
 #Defining github value
 LOGINFO="... github authentification" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi
@@ -80,7 +85,7 @@ for f in */; do
         EXCLUDE_TEXT=$(jq -r .github_exclude updater.json)
         EXCLUDE_TEXT="${EXCLUDE_TEXT:-zzzzzzzzzzzzzzzz}"
         PAUSED=$(jq -r .paused updater.json)
-        DATE="$(date '+%d-%m-%Y')"
+        DATE="$(date "$DATE_FORMAT")"
         BYDATE=$(jq -r .dockerhub_by_date updater.json)
 
         # Number of elements to check in dockerhub
@@ -163,6 +168,7 @@ for f in */; do
                         | jq '.results[] | select(.name==$LASTVERSION) | .last_updated' -r --arg LASTVERSION "$LASTVERSION"
                 ) \
                 && DATE="${DATE%T*}" \
+                && DATE="$(date -d "$DATE" "$DATE_FORMAT")" \
                 && LASTVERSION="$LASTVERSION-$DATE"
             LOGINFO="... $SLUG : bydate is true, version is $LASTVERSION" && if [ "$VERBOSE" = true ]; then bashio::log.info "$LOGINFO"; fi