From fe38f6fdf6066ee2d388afdd09b4e8c7bf9c25a8 Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Fri, 24 Apr 2026 23:46:50 +0000
Subject: [PATCH 1/7] auto-timezone: add new package

A hotplug script to auto set the timezone based on the IP address

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/Makefile                  | 38 ++++++++++++++++
 utils/auto-timezone/files/99-auto-timezone    | 45 +++++++++++++++++++
 .../auto-timezone/files/auto-timezone.config  |  1 +
 3 files changed, 84 insertions(+)
 create mode 100644 utils/auto-timezone/Makefile
 create mode 100644 utils/auto-timezone/files/99-auto-timezone
 create mode 100644 utils/auto-timezone/files/auto-timezone.config

diff --git a/utils/auto-timezone/Makefile b/utils/auto-timezone/Makefile
new file mode 100644
index 00000000000000..e4849d5b1cf058
--- /dev/null
+++ b/utils/auto-timezone/Makefile
@@ -0,0 +1,38 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=auto-timezone
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=1
+
+PKG_MAINTAINER:=Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
+PKG_LICENSE:=GPL-3.0-or-later
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/auto-timezone
+	SECTION:=utils
+	CATEGORY:=Utilities
+	TITLE:=Auto set timezone by IP
+  PKGARCH:=all
+	DEPENDS:=+zoneinfo-all
+endef
+
+define Package/auto-timezone/description
+Hotplug script to automatically configure the timezone UCI settings based on the IP address.
+
+The user needs to set their own endpoint to get the IANA timezone string, e.g.:
+	uci set auto-timezone.config.endpoint="https://domain.tld/json"
+	uci commit
+endef
+
+define Build/Compile
+endef
+
+define Package/auto-timezone/install
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface/
+	$(INSTALL_DATA) ./files/99-auto-timezone $(1)/etc/hotplug.d/iface/
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/auto-timezone.config $(1)/etc/config/auto-timezone
+endef
+
+$(eval $(call BuildPackage,auto-timezone))
diff --git a/utils/auto-timezone/files/99-auto-timezone b/utils/auto-timezone/files/99-auto-timezone
new file mode 100644
index 00000000000000..5b0610d5a44558
--- /dev/null
+++ b/utils/auto-timezone/files/99-auto-timezone
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+log() {
+    logger -t "auto-timezone" "$*"
+}
+
+if [ "${INTERFACE}" = "loopback" ]; then
+    exit 0
+fi
+if [ "${ACTION}" != "ifup" ] && [ "${ACTION}" != "ifupdate" ]; then
+    exit 0
+fi
+if [ "${ACTION}" = "ifupdate" ] && [ -z "${IFUPDATE_ADDRESSES}" ] && [ -z "${IFUPDATE_DATA}" ]; then
+    exit 0
+fi
+
+endpoint="$(uci -q get auto-timezone.config.endpoint)"
+if [ $? -ne 0 ]; then
+    log "Endpoint not set"
+    exit 1
+fi
+
+for i in {1..5}; do
+    timezone_iana="$(wget --timeout=5 -qO- "${endpoint}")" && break || sleep 1
+done
+
+if [ -z "$timezone_iana" ]; then
+    log "Failed to get timezone"
+    exit 1
+fi
+
+timezone_posix="$(tail -n1 /usr/share/zoneinfo/${timezone_iana})"
+if [ $? -ne 0 ]; then
+    log "Invalid timezone"
+    exit 1
+fi
+
+if [ "${timezone_iana}" != "$(uci get system.@system[0].zonename)" ] || [  "${timezone_posix}" != "$(uci get system.@system[0].timezone)" ]; then
+    log "Updating timezone, IANA: ${timezone_iana}, POSIX: ${timezone_posix}"
+    uci set system.@system[0].zonename="${timezone_iana}"
+    uci set system.@system[0].timezone="${timezone_posix}"
+    uci commit system
+    /etc/init.d/system reload
+    /etc/init.d/cron restart
+fi
diff --git a/utils/auto-timezone/files/auto-timezone.config b/utils/auto-timezone/files/auto-timezone.config
new file mode 100644
index 00000000000000..21552dd7a97c39
--- /dev/null
+++ b/utils/auto-timezone/files/auto-timezone.config
@@ -0,0 +1 @@
+config auto-timezone 'config'

From e059021613f5687572ea9b0d98d19c5733557fff Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Fri, 24 Apr 2026 23:55:46 +0000
Subject: [PATCH 2/7] auto-timezone: add new package

fix indentation

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/auto-timezone/Makefile b/utils/auto-timezone/Makefile
index e4849d5b1cf058..46457d03aa9da1 100644
--- a/utils/auto-timezone/Makefile
+++ b/utils/auto-timezone/Makefile
@@ -13,7 +13,7 @@ define Package/auto-timezone
 	SECTION:=utils
 	CATEGORY:=Utilities
 	TITLE:=Auto set timezone by IP
-  PKGARCH:=all
+	PKGARCH:=all
 	DEPENDS:=+zoneinfo-all
 endef
 

From 5f190f408acf8231b887c588fee994609b5ab0a8 Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Fri, 24 Apr 2026 23:58:43 +0000
Subject: [PATCH 3/7] auto-timezone: add new package

update makefile indentation

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/Makefile | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/utils/auto-timezone/Makefile b/utils/auto-timezone/Makefile
index 46457d03aa9da1..83be57baaf3909 100644
--- a/utils/auto-timezone/Makefile
+++ b/utils/auto-timezone/Makefile
@@ -10,29 +10,29 @@ PKG_LICENSE:=GPL-3.0-or-later
 include $(INCLUDE_DIR)/package.mk
 
 define Package/auto-timezone
-	SECTION:=utils
-	CATEGORY:=Utilities
-	TITLE:=Auto set timezone by IP
-	PKGARCH:=all
-	DEPENDS:=+zoneinfo-all
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Auto set timezone by IP
+  PKGARCH:=all
+  DEPENDS:=+zoneinfo-all
 endef
 
 define Package/auto-timezone/description
 Hotplug script to automatically configure the timezone UCI settings based on the IP address.
 
 The user needs to set their own endpoint to get the IANA timezone string, e.g.:
-	uci set auto-timezone.config.endpoint="https://domain.tld/json"
-	uci commit
+  uci set auto-timezone.config.endpoint="https://domain.tld/json"
+  uci commit
 endef
 
 define Build/Compile
 endef
 
 define Package/auto-timezone/install
-	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface/
-	$(INSTALL_DATA) ./files/99-auto-timezone $(1)/etc/hotplug.d/iface/
-	$(INSTALL_DIR) $(1)/etc/config
-	$(INSTALL_CONF) ./files/auto-timezone.config $(1)/etc/config/auto-timezone
+  $(INSTALL_DIR) $(1)/etc/hotplug.d/iface/
+  $(INSTALL_DATA) ./files/99-auto-timezone $(1)/etc/hotplug.d/iface/
+  $(INSTALL_DIR) $(1)/etc/config
+  $(INSTALL_CONF) ./files/auto-timezone.config $(1)/etc/config/auto-timezone
 endef
 
 $(eval $(call BuildPackage,auto-timezone))

From d4af4009ce633648757dc4c5aa4a4eaf24361bcb Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Sat, 25 Apr 2026 00:04:26 +0000
Subject: [PATCH 4/7] auto-timezone: add new package

revert makefile's indentation

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/Makefile | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/utils/auto-timezone/Makefile b/utils/auto-timezone/Makefile
index 83be57baaf3909..46457d03aa9da1 100644
--- a/utils/auto-timezone/Makefile
+++ b/utils/auto-timezone/Makefile
@@ -10,29 +10,29 @@ PKG_LICENSE:=GPL-3.0-or-later
 include $(INCLUDE_DIR)/package.mk
 
 define Package/auto-timezone
-  SECTION:=utils
-  CATEGORY:=Utilities
-  TITLE:=Auto set timezone by IP
-  PKGARCH:=all
-  DEPENDS:=+zoneinfo-all
+	SECTION:=utils
+	CATEGORY:=Utilities
+	TITLE:=Auto set timezone by IP
+	PKGARCH:=all
+	DEPENDS:=+zoneinfo-all
 endef
 
 define Package/auto-timezone/description
 Hotplug script to automatically configure the timezone UCI settings based on the IP address.
 
 The user needs to set their own endpoint to get the IANA timezone string, e.g.:
-  uci set auto-timezone.config.endpoint="https://domain.tld/json"
-  uci commit
+	uci set auto-timezone.config.endpoint="https://domain.tld/json"
+	uci commit
 endef
 
 define Build/Compile
 endef
 
 define Package/auto-timezone/install
-  $(INSTALL_DIR) $(1)/etc/hotplug.d/iface/
-  $(INSTALL_DATA) ./files/99-auto-timezone $(1)/etc/hotplug.d/iface/
-  $(INSTALL_DIR) $(1)/etc/config
-  $(INSTALL_CONF) ./files/auto-timezone.config $(1)/etc/config/auto-timezone
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/iface/
+	$(INSTALL_DATA) ./files/99-auto-timezone $(1)/etc/hotplug.d/iface/
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_CONF) ./files/auto-timezone.config $(1)/etc/config/auto-timezone
 endef
 
 $(eval $(call BuildPackage,auto-timezone))

From 0db4d54f6c1bb09ca16ee8065b8da0081a2bffb5 Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Sat, 25 Apr 2026 00:06:32 +0000
Subject: [PATCH 5/7] auto-timezone: add new package

minor formatting on the script

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/files/99-auto-timezone | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/auto-timezone/files/99-auto-timezone b/utils/auto-timezone/files/99-auto-timezone
index 5b0610d5a44558..631ec154bdfaa9 100644
--- a/utils/auto-timezone/files/99-auto-timezone
+++ b/utils/auto-timezone/files/99-auto-timezone
@@ -24,7 +24,7 @@ for i in {1..5}; do
     timezone_iana="$(wget --timeout=5 -qO- "${endpoint}")" && break || sleep 1
 done
 
-if [ -z "$timezone_iana" ]; then
+if [ -z "${timezone_iana}" ]; then
     log "Failed to get timezone"
     exit 1
 fi

From bc5ca298d94fda25fe64d9d54b4c7eb7d1bb7e7f Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Sat, 25 Apr 2026 00:07:52 +0000
Subject: [PATCH 6/7] auto-timezone: add new package

avoid creating new functions unnecessarily

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/files/99-auto-timezone | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/utils/auto-timezone/files/99-auto-timezone b/utils/auto-timezone/files/99-auto-timezone
index 631ec154bdfaa9..0e6c858d3a9be4 100644
--- a/utils/auto-timezone/files/99-auto-timezone
+++ b/utils/auto-timezone/files/99-auto-timezone
@@ -1,9 +1,5 @@
 #!/bin/sh
 
-log() {
-    logger -t "auto-timezone" "$*"
-}
-
 if [ "${INTERFACE}" = "loopback" ]; then
     exit 0
 fi
@@ -14,6 +10,10 @@ if [ "${ACTION}" = "ifupdate" ] && [ -z "${IFUPDATE_ADDRESSES}" ] && [ -z "${IFU
     exit 0
 fi
 
+log() {
+    logger -t "auto-timezone" "$*"
+}
+
 endpoint="$(uci -q get auto-timezone.config.endpoint)"
 if [ $? -ne 0 ]; then
     log "Endpoint not set"

From 6332727c7776b7b4447699714f9c585b2187340c Mon Sep 17 00:00:00 2001
From: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
Date: Sun, 26 Apr 2026 22:01:34 +0000
Subject: [PATCH 7/7] auto-timezone: add new package

address comments.
1. add log info/error
2. wrap posix timezone convertion in a function
3. update package description

Signed-off-by: Renn Akaza <openwrt.org-auto-timezone@akaza.ren>
---
 utils/auto-timezone/Makefile               |  7 ++++--
 utils/auto-timezone/files/99-auto-timezone | 25 ++++++++++++++++------
 2 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/utils/auto-timezone/Makefile b/utils/auto-timezone/Makefile
index 46457d03aa9da1..9b26408ae121a3 100644
--- a/utils/auto-timezone/Makefile
+++ b/utils/auto-timezone/Makefile
@@ -21,8 +21,11 @@ define Package/auto-timezone/description
 Hotplug script to automatically configure the timezone UCI settings based on the IP address.
 
 The user needs to set their own endpoint to get the IANA timezone string, e.g.:
-	uci set auto-timezone.config.endpoint="https://domain.tld/json"
-	uci commit
+	uci set auto-timezone.config.endpoint="https://domain.tld/timezone"
+	uci commit auto-timezone
+
+The endpoint is expected to respond GET requests by a plaintext one-line IANA timezone string, e.g. "Europe/London".
+The endpoint can be verified by directly accessing the its URL from a browser by the address bar.
 endef
 
 define Build/Compile
diff --git a/utils/auto-timezone/files/99-auto-timezone b/utils/auto-timezone/files/99-auto-timezone
index 0e6c858d3a9be4..eed7668acf860c 100644
--- a/utils/auto-timezone/files/99-auto-timezone
+++ b/utils/auto-timezone/files/99-auto-timezone
@@ -11,12 +11,25 @@ if [ "${ACTION}" = "ifupdate" ] && [ -z "${IFUPDATE_ADDRESSES}" ] && [ -z "${IFU
 fi
 
 log() {
-    logger -t "auto-timezone" "$*"
+    logger -t "auto-timezone" "$@"
+}
+
+log_info() {
+    log -p user.info "$*"
+}
+
+log_error() {
+    log -p user.err "$*"
+}
+
+get_posix_timezone() {
+    iana_timezone=$1
+    tail -n1 /usr/share/zoneinfo/${iana_timezone}
 }
 
 endpoint="$(uci -q get auto-timezone.config.endpoint)"
 if [ $? -ne 0 ]; then
-    log "Endpoint not set"
+    log_error "Endpoint not set"
     exit 1
 fi
 
@@ -25,18 +38,18 @@ for i in {1..5}; do
 done
 
 if [ -z "${timezone_iana}" ]; then
-    log "Failed to get timezone"
+    log_error "Failed to get timezone"
     exit 1
 fi
 
-timezone_posix="$(tail -n1 /usr/share/zoneinfo/${timezone_iana})"
+timezone_posix="$(get_posix_timezone ${timezone_iana})"
 if [ $? -ne 0 ]; then
-    log "Invalid timezone"
+    log_error "Invalid timezone"
     exit 1
 fi
 
 if [ "${timezone_iana}" != "$(uci get system.@system[0].zonename)" ] || [  "${timezone_posix}" != "$(uci get system.@system[0].timezone)" ]; then
-    log "Updating timezone, IANA: ${timezone_iana}, POSIX: ${timezone_posix}"
+    log_info "Updating timezone, IANA: ${timezone_iana}, POSIX: ${timezone_posix}"
     uci set system.@system[0].zonename="${timezone_iana}"
     uci set system.@system[0].timezone="${timezone_posix}"
     uci commit system