diff --git a/dev-libs/kopeninghours/Manifest b/dev-libs/kopeninghours/Manifest
index 491a3f12de5ae..57f6b524a27ba 100644
--- a/dev-libs/kopeninghours/Manifest
+++ b/dev-libs/kopeninghours/Manifest
@@ -1 +1,2 @@
 DIST kopeninghours-25.12.2.tar.xz 76276 BLAKE2B eec4357168600071eaa8ca98eb3dbddb5a72048fed4fc81ad5c23d6ed420b52a5c2c54af6a6c97bc3f2493be9ad78d620e2c056065312c5f3542ff78abe03b6c SHA512 06ac04362793bc244efe587fab1d30e7bc27e4924a4e7ecb3693f5406430be1239d657ad08547b03a4452c5e49a598423c091affeb5239b1f5c8eb372e4765f1
+DIST kopeninghours-25.12.3.tar.xz 76264 BLAKE2B a0d65d2df77b078110f1fdf2b3984b47024ed905e05ccd0828a85e9e7e9b2795a2ef5c1b5d8bcc6308bc3508e2f8cff6abd8b79d12e075f8a88fe8ffa2320244 SHA512 e8f6bc1128528e929f0548a3d00550d08817c6cb0f0015ebbffbc4ac583a12946bc00753017d909a19e943cee773ae167038b52aae5c6662a496e10fdf2a7fde
diff --git a/dev-libs/kopeninghours/kopeninghours-25.12.3.ebuild b/dev-libs/kopeninghours/kopeninghours-25.12.3.ebuild
new file mode 100644
index 0000000000000..a614285344d2d
--- /dev/null
+++ b/dev-libs/kopeninghours/kopeninghours-25.12.3.ebuild
@@ -0,0 +1,59 @@
+# Copyright 1999-2026 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ECM_QTHELP="true"
+ECM_TEST="true"
+PVCUT=$(ver_cut 1-3)
+KFMIN=6.22.0
+QTMIN=6.10.1
+PYTHON_COMPAT=( python3_{11..13} )
+inherit ecm gear.kde.org python-single-r1
+
+DESCRIPTION="Library for parsing and evaluating OSM opening hours expressions"
+HOMEPAGE="https://api.kde.org/kopeninghours/html/index.html
+https://invent.kde.org/libraries/kopeninghours"
+
+LICENSE="LGPL-2+"
+SLOT="6/$(ver_cut 1-2)"
+KEYWORDS="~amd64 ~arm64"
+IUSE="python"
+
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+DEPEND="
+	>=dev-libs/kpublictransport-${PVCUT}:6=
+	>=dev-qt/qtdeclarative-${QTMIN}:6
+	>=kde-frameworks/kholidays-${KFMIN}:6
+	>=kde-frameworks/ki18n-${KFMIN}:6
+	virtual/zlib:=
+	python? (
+		$(python_gen_cond_dep '
+			>=dev-libs/boost-1.70:=[python,${PYTHON_USEDEP}]
+		')
+	)
+"
+RDEPEND="${DEPEND}
+	${PYTHON_DEPS}
+"
+BDEPEND="
+	app-alternatives/lex
+	app-alternatives/yacc
+"
+
+PATCHES=( "${FILESDIR}/${PN}-25.12.0-cmake-minreqver-3.10.patch" )
+
+src_configure() {
+	local mycmakeargs=(
+		-DPython_LIBRARY=$(python_get_library_path)
+		-DPython_INCLUDE_DIR=$(python_get_includedir)
+		$(cmake_use_find_package python Boost)
+	)
+	ecm_src_configure
+}
+
+src_install() {
+	ecm_src_install
+	use python && python_optimize
+}