diff --git a/net-misc/chrony/Manifest b/net-misc/chrony/Manifest
new file mode 100644
index 0000000..bb1c6ba
--- /dev/null
+++ b/net-misc/chrony/Manifest
@@ -0,0 +1,2 @@
+DIST chrony-4.2.tar.gz 578411 BLAKE2B 6eac4f144f5811d0f83a9827e2b5113dead1ff96952f6e6d32dcea9858e04512f635d70237fe6faced095991204b0f62bcb0e9d1a4b34e8778f205058afdfb45 SHA512 7f946b27de605b3ebea62cf23916dfad77c99e8b2338ba239ede6b8216ce436b3d4d87770f371c8d8e006507c51d5c831b51f067957abd2935adfdec3f5aa67d
+DIST chrony-4.2.tar.gz.asc 833 BLAKE2B 41cb83f62dd58489313438672d209cc65fdbb5f8f595ea38f990d5e15194f91532d3f3221c6c38581467d62e95d23853a4fc438d32b99606def5f06db0031969 SHA512 d8ae4b540ce3529a5a72e10c14765a33ca6fc41529b6fdc9928fb171f25bd6fb87f930b7783638892f42f4cbcfaab4cb1064c930bae1d5204a71babad72b6e10
diff --git a/net-misc/chrony/OWNERS b/net-misc/chrony/OWNERS
new file mode 100644
index 0000000..390b7e8
--- /dev/null
+++ b/net-misc/chrony/OWNERS
@@ -0,0 +1 @@
+include chromiumos/platform2:/vm_tools/OWNERS
diff --git a/net-misc/chrony/chrony-4.2.ebuild b/net-misc/chrony/chrony-4.2.ebuild
new file mode 100644
index 0000000..b67ed42
--- /dev/null
+++ b/net-misc/chrony/chrony-4.2.ebuild
@@ -0,0 +1,252 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit systemd tmpfiles toolchain-funcs
+
+DESCRIPTION="NTP client and server programs"
+HOMEPAGE="https://chrony.tuxfamily.org/ https://git.tuxfamily.org/chrony/chrony.git"
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="https://git.tuxfamily.org/chrony/chrony.git"
+	inherit git-r3
+else
+	VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/mlichvar.asc
+	inherit verify-sig
+
+	SRC_URI="https://download.tuxfamily.org/${PN}/${P/_/-}.tar.gz"
+	SRC_URI+=" verify-sig? ( https://download.tuxfamily.org/chrony/${P/_/-}-tar-gz-asc.txt -> ${P/_/-}.tar.gz.asc )"
+
+	if [[ ${PV} != *_pre* ]] ; then
+		KEYWORDS="*"
+	fi
+fi
+
+S="${WORKDIR}/${P/_/-}"
+
+LICENSE="GPL-2"
+SLOT="0"
+IUSE="+caps +cmdmon debug html ipv6 libedit libtomcrypt +nettle nss +ntp +nts +phc pps +refclock +rtc samba +seccomp +sechash selinux"
+# nettle > nss > libtomcrypt in configure
+REQUIRED_USE="
+	sechash? ( || ( nettle nss libtomcrypt ) )
+	nettle? ( !nss )
+	nss? ( !nettle )
+	libtomcrypt? ( !nettle !nss )
+	!sechash? ( !nss )
+	!sechash? ( !nts? ( !nettle ) )
+"
+
+DEPEND="
+	caps? (
+		acct-group/ntp
+		acct-user/ntp
+		sys-libs/libcap
+	)
+	libedit? ( dev-libs/libedit )
+	!libedit? ( sys-libs/readline:= )
+	nettle? ( dev-libs/nettle:= )
+	nss? ( dev-libs/nss:= )
+	nts? ( net-libs/gnutls:= )
+	pps? ( net-misc/pps-tools )
+	seccomp? ( sys-libs/libseccomp )
+"
+RDEPEND="
+	${DEPEND}
+	selinux? ( sec-policy/selinux-chronyd )
+"
+BDEPEND="
+	html? ( dev-ruby/asciidoctor )
+	nts? ( virtual/pkgconfig )
+	sechash? (
+		nettle? ( virtual/pkgconfig )
+		nss? ( virtual/pkgconfig )
+	)
+"
+
+if [[ ${PV} == "9999" ]] ; then
+	# Needed for doc generation in 9999
+	REQUIRED_USE+=" html"
+	BDEPEND+=" virtual/w3m"
+else
+	BDEPEND+=" verify-sig? ( >=sec-keys/openpgp-keys-mlichvar-20210513 )"
+fi
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-3.5-pool-vendor-gentoo.patch
+	"${FILESDIR}"/${PN}-4.2-systemd-gentoo.patch
+)
+
+src_prepare() {
+	default
+
+	sed -i \
+		-e 's:/etc/chrony\.conf:/etc/chrony/chrony.conf:g' \
+		doc/* examples/* || die
+
+	cp "${FILESDIR}"/chronyd.conf-r3 "${T}"/chronyd.conf || die
+}
+
+src_configure() {
+	if ! use caps ; then
+		sed -i \
+			-e 's/ -u ntp//' \
+			"${T}"/chronyd.conf examples/chronyd.service || die
+	fi
+
+	if ! use seccomp ; then
+		sed -i \
+			-e 's/ -F 2//' \
+			"${T}"/chronyd.conf examples/chronyd.service || die
+	fi
+
+	tc-export CC PKG_CONFIG
+
+	# Update from time to time with output from "date +%s"
+	# on a system that is time-synced.
+	export SOURCE_DATE_EPOCH=1607976314
+
+	# Not an autotools generated script
+	local myconf=(
+		$(use_enable seccomp scfilter)
+
+		$(usex caps '' '--disable-linuxcaps')
+		$(usex cmdmon '' '--disable-cmdmon')
+		$(usex debug '--enable-debug' '')
+		$(usex ipv6 '' '--disable-ipv6')
+		$(usex libedit '' '--without-editline')
+		$(usex libtomcrypt '' '--without-tomcrypt')
+		$(usex nettle '' '--without-nettle')
+		$(usex nss '' '--without-nss')
+		$(usex ntp '' '--disable-ntp')
+		$(usex nts '' '--disable-nts')
+		$(usex nts '' '--without-gnutls')
+		$(usex phc '' '--disable-phc')
+		$(usex pps '' '--disable-pps')
+		$(usex refclock '' '--disable-refclock')
+		$(usex rtc '' '--disable-rtc')
+		$(usex samba '--enable-ntp-signd' '')
+		$(usex sechash '' '--disable-sechash')
+
+		--chronysockdir="${EPREFIX}/run/chrony"
+		--docdir="${EPREFIX}/usr/share/doc/${PF}"
+		--mandir="${EPREFIX}/usr/share/man"
+		--prefix="${EPREFIX}/usr"
+		--sysconfdir="${EPREFIX}/etc/chrony"
+		--with-hwclockfile="${EPREFIX}/etc/adjtime"
+		--with-pidfile="${EPREFIX}/run/chrony/chronyd.pid"
+
+		${EXTRA_ECONF}
+	)
+
+	# Print the ./configure call
+	echo sh ./configure "${myconf[@]}" >&2
+	sh ./configure "${myconf[@]}" || die
+}
+
+src_compile() {
+	if [[ ${PV} == "9999" ]] ; then
+		# Uses w3m
+		emake -C doc man txt
+	fi
+
+	emake all docs $(usex html '' 'ADOC=true')
+}
+
+src_install() {
+	default
+
+	newinitd "${FILESDIR}"/chronyd.init-r2 chronyd
+	newconfd "${T}"/chronyd.conf chronyd
+
+	insinto /etc/${PN}
+	newins examples/chrony.conf.example1 chrony.conf
+
+	docinto examples
+	dodoc examples/*.example*
+
+	newtmpfiles - chronyd.conf <<<"d /run/chrony 0750 $(usex caps 'ntp ntp' 'root root')"
+
+	if use html ; then
+		docinto html
+		dodoc doc/*.html
+	fi
+
+	keepdir /var/{lib,log}/chrony
+
+	if use caps ; then
+		# Prepare a directory for the chrony.drift file (a la ntpsec)
+		# Ensures the environment is sane on new installs
+		# bug #711058
+		fowners ntp:ntp /var/{lib,log}/chrony
+		fperms 770 /var/lib/chrony
+	fi
+
+	insinto /etc/logrotate.d
+	newins "${FILESDIR}"/chrony-2.4-r1.logrotate chrony
+
+	systemd_dounit examples/chronyd.service
+	systemd_dounit examples/chrony-wait.service
+	systemd_enable_ntpunit 50-chrony chronyd.service
+}
+
+pkg_preinst() {
+	HAD_CAPS=0
+	HAD_SECCOMP=0
+	HAD_PRE_NEW_SECCOMP_LEVEL=0
+
+	# See https://dev.gentoo.org/~zmedico/portage/doc/portage.html#package-ebuild-phases-after-2.1.5
+	# in "Ebuild Phases" for an explanation of why we need to save the variable beforehand
+	if has_version 'net-misc/chrony[caps]' ; then
+		HAD_CAPS=1
+	fi
+
+	if has_version 'net-misc/chrony[seccomp]' ; then
+		HAD_SECCOMP=1
+	fi
+
+	if has_version '>=net-misc/chrony-4.1[seccomp]' ; then
+		# This version introduced a new filter level: -F 2
+		# It's a limited set of seccomp filters designed to be 'bare minimum'
+		HAD_PRE_NEW_SECCOMP_LEVEL=1
+	fi
+}
+
+pkg_postinst() {
+	tmpfiles_process chronyd.conf
+
+	if [[ -n "${REPLACING_VERSIONS}" ]] ; then
+		if use caps && ! [[ ${HAD_CAPS} -eq 1 ]] ; then
+			# bug #719876
+			ewarn "Please adjust permissions on ${EROOT}/var/{lib,log}/chrony to be owned by ntp:ntp"
+			ewarn "e.g. chown -R ntp:ntp ${EROOT}/var/{lib,log}/chrony"
+			ewarn "This is necessary for chrony to drop privileges"
+		elif ! use caps && [[ ${HAD_CAPS} -eq 0 ]] ; then
+			ewarn "Please adjust permissions on ${EROOT}/var/{lib,log}/chrony to be owned by root:root"
+		fi
+	fi
+
+	# See bug #783915 for general discussion on enabling seccomp filtering
+	# by default.
+	local show_seccomp_enable_msg=0
+
+	# Was seccomp disabled before and now enabled?
+	if [[ ${HAD_SECCOMP} -eq 0 ]] && use seccomp ; then
+		show_seccomp_enable_msg=1
+	fi
+
+	# Are we coming from an old version without the new 'minimal' filter?
+	# (-F 2)
+	if [[ ${HAD_PRE_NEW_SECCOMP_LEVEL} -eq 0 ]] ; then
+		show_seccomp_enable_msg=1
+	fi
+
+	if [[ ${show_seccomp_enable_msg} -eq 1 ]] ; then
+		elog "To enable seccomp in a stricter mode, please modify:"
+		elog "- /etc/conf.d/chronyd for OpenRC"
+		elog "- systemctl edit chronyd for systemd"
+		elog "to use -F 1 or -F -1 instead of -F 2 (see man chronyd)"
+		elog "By default, we now use -F 2 which is a baseline/minimal filter."
+	fi
+}
diff --git a/net-misc/chrony/files/chrony-2.4-r1.logrotate b/net-misc/chrony/files/chrony-2.4-r1.logrotate
new file mode 100644
index 0000000..a2cf8fe
--- /dev/null
+++ b/net-misc/chrony/files/chrony-2.4-r1.logrotate
@@ -0,0 +1,7 @@
+/var/log/chrony/*.log {
+	missingok
+	sharedscripts
+	postrotate
+		/usr/bin/chronyc cyclelogs |grep -v '^200 OK'; exit 0
+	endscript
+}
diff --git a/net-misc/chrony/files/chrony-3.5-pool-vendor-gentoo.patch b/net-misc/chrony/files/chrony-3.5-pool-vendor-gentoo.patch
new file mode 100644
index 0000000..817a410
--- /dev/null
+++ b/net-misc/chrony/files/chrony-3.5-pool-vendor-gentoo.patch
@@ -0,0 +1,16 @@
+- Use the Gentoo pool
+- Use the server directive instead of the pool directive so we get four time
+  sources and not twelve.
+
+--- a/examples/chrony.conf.example1
++++ b/examples/chrony.conf.example1
+@@ -1,5 +1,8 @@
+ # Use public NTP servers from the pool.ntp.org project.
+-pool pool.ntp.org iburst
++server 0.gentoo.pool.ntp.org iburst
++server 1.gentoo.pool.ntp.org iburst
++server 2.gentoo.pool.ntp.org iburst
++server 3.gentoo.pool.ntp.org iburst
+ 
+ # Record the rate at which the system clock gains/losses time.
+ driftfile /var/lib/chrony/drift
diff --git a/net-misc/chrony/files/chrony-4.2-systemd-gentoo.patch b/net-misc/chrony/files/chrony-4.2-systemd-gentoo.patch
new file mode 100644
index 0000000..1852cde
--- /dev/null
+++ b/net-misc/chrony/files/chrony-4.2-systemd-gentoo.patch
@@ -0,0 +1,13 @@
+diff --git a/examples/chronyd.service b/examples/chronyd.service
+index 4fb930e..8df627a 100644
+--- a/examples/chronyd.service
++++ b/examples/chronyd.service
+@@ -9,7 +9,7 @@ ConditionCapability=CAP_SYS_TIME
+ Type=forking
+ PIDFile=/run/chrony/chronyd.pid
+ EnvironmentFile=-/etc/sysconfig/chronyd
+-ExecStart=/usr/sbin/chronyd $OPTIONS
++ExecStart=/usr/sbin/chronyd $OPTIONS -u ntp -F 2
+ 
+ CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
+ CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_KILL CAP_LEASE CAP_LINUX_IMMUTABLE
diff --git a/net-misc/chrony/files/chronyd.conf-r3 b/net-misc/chrony/files/chronyd.conf-r3
new file mode 100644
index 0000000..25a4758
--- /dev/null
+++ b/net-misc/chrony/files/chronyd.conf-r3
@@ -0,0 +1,12 @@
+# /etc/conf.d/chronyd
+
+CFGFILE="/etc/chrony/chrony.conf"
+
+# Configuration dependant options :
+#      -s - Set system time from RTC if rtcfile directive present
+#      -r - Reload sample histories if dumponexit directive present
+#
+# The combination of "-s -r" allows chronyd to perform long term averaging of
+# the gain or loss rate across system reboots and shutdowns.
+
+ARGS=" -u ntp -F 2"
diff --git a/net-misc/chrony/files/chronyd.init-r2 b/net-misc/chrony/files/chronyd.init-r2
new file mode 100644
index 0000000..4892a57
--- /dev/null
+++ b/net-misc/chrony/files/chronyd.init-r2
@@ -0,0 +1,70 @@
+#!/sbin/openrc-run
+# Copyright 1999-2018 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+depend() {
+	use dns
+}
+
+checkconfig() {
+	# Note that /etc/chrony/chrony.keys is *NOT* checked. This
+	# is because the user may have specified another key
+	# file, and we don't want to force the user to use that
+	# exact name for the key file.
+	if [ ! -f "${CFGFILE}" ] ; then
+		eerror "Please create ${CFGFILE} and the"
+		eerror "chrony key file (usually /etc/chrony/chrony.keys)"
+		eerror "by using the"
+		eerror ""
+		eerror "        chrony.conf.example"
+		eerror "        chrony.keys.example"
+		eerror ""
+		eerror "files (from the documentation directory)"
+		eerror "as templates."
+		return 1
+	else
+		# Actually, I tried it, and chrony seems to ignore the pidfile
+		# option. I'm going to leave it here anyway, since you never
+		# know if it might be handy
+		PIDFILE=`awk '/^ *pidfile/{print $2}' "${CFGFILE}"`
+		[ -z "${PIDFILE}" ] && PIDFILE=/run/chrony/chronyd.pid
+	fi
+	return 0
+}
+
+setxtrarg() {
+	if [ -c /dev/rtc ]; then
+		grep -q '^rtcfile' "${CFGFILE}" && ARGS="${ARGS} -s"
+	fi
+	grep -q '^dumponexit$' "${CFGFILE}" && ARGS="${ARGS} -r"
+	return 0
+}
+
+start() {
+	checkconfig || return $?
+	setxtrarg
+
+	[ -n "${PIDFILE}" ] || PIDFILE=/run/chronyd.pid
+
+	ebegin "Starting chronyd"
+	start-stop-daemon \
+		--start \
+		--quiet \
+		--exec /usr/sbin/chronyd \
+		--pidfile "${PIDFILE}" \
+		-- -f "${CFGFILE}" ${ARGS}
+	eend $? "Failed to start chronyd"
+}
+
+stop() {
+	checkconfig || return $?
+
+	[ -n "${PIDFILE}" ] || PIDFILE=/run/chronyd.pid
+
+	ebegin "Stopping chronyd"
+	start-stop-daemon \
+		--stop \
+		--quiet \
+		--pidfile "${PIDFILE}"
+	eend $? "Failed to stop chronyd"
+}
diff --git a/net-misc/chrony/metadata.xml b/net-misc/chrony/metadata.xml
new file mode 100644
index 0000000..dc25a0f
--- /dev/null
+++ b/net-misc/chrony/metadata.xml
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>sam@gentoo.org</email>
+		<name>Sam James</name>
+	</maintainer>
+	<maintainer type="project">
+		<email>base-system@gentoo.org</email>
+		<name>Gentoo Base System</name>
+	</maintainer>
+	<longdescription>
+		Chrony is a pair of programs (chronyd and chronyc) which are used to maintain
+		the accuracy of the system clock on a computer. chronyd has been specifically
+		written to work well for systems which have only an intermittent (e.g. dial-up)
+		connection to the network where the NTP servers are. It still works well
+		in a "permanently connected" mode.
+	</longdescription>
+	<longdescription lang="ja">
+		Chrony はコンピュータのシステム・クロックの精度を保つために使われるプログラムの
+		ペア(chronyd と chronyc)です。chronyd は NTP サーバがあるネットワークと断続的な
+		接続(e.g. dial-up)しか持たないシステムで機能するよう書かれています。ですが永続的
+		な接続でも機能します。
+	</longdescription>
+	<use>
+		<flag name="cmdmon">Support for command and monitoring</flag>
+		<flag name="debug">Get DEBUG_LOG output from chronyd when passing -dd parameter</flag>
+		<flag name="html">Install HTML documentation</flag>
+		<flag name="nettle">Use <pkg>dev-libs/nettle</pkg> for hash functions or nts</flag>
+		<flag name="nss">Use <pkg>dev-libs/nss</pkg> for hash functions</flag>
+		<flag name="ntp">Support for the Network Time Protocol (NTP)</flag>
+		<flag name="nts">Support for Network Time Security (NTS). Uses <pkg>net-libs/gnutls</pkg></flag>
+		<flag name="phc">Support for the PTP (Precision Time Protocol) Hardware Clock (PHC) interface</flag>
+		<flag name="pps">Support for the Linux Pulse Per Second (PPS) interface</flag>
+		<flag name="refclock">Support for reference clocks</flag>
+		<flag name="rtc">Support for the Linux Real Time Clock interface</flag>
+		<flag name="sechash">Enable support for hashes other than MD5</flag>
+		<flag name="libtomcrypt">Support different hashes via <pkg>dev-libs/libtomcrypt</pkg></flag>
+	</use>
+	<upstream>
+		<remote-id type="cpe">cpe:/a:chrony_project:chrony</remote-id>
+	</upstream>
+</pkgmetadata>