diff --git a/etc/systemd/timesyncd.conf.d/facebook.conf b/etc/systemd/timesyncd.conf.d/facebook.conf
new file mode 100644
index 00000000..18579b9d
--- /dev/null
+++ b/etc/systemd/timesyncd.conf.d/facebook.conf
@@ -0,0 +1,7 @@
+# WARNING: Leap second smearing! Don't use with anything else!
+# The config comes from https://developers.google.com/time/guides but I
+# already have a FallbackNTP so it needs to be erased as well.
+#[Time]
+#NTP=
+#FallbackNTP=
+#FallbackNTP=time.facebook.com
diff --git a/etc/systemd/timesyncd.conf.d/google.conf b/etc/systemd/timesyncd.conf.d/google.conf
new file mode 100644
index 00000000..17acbb92
--- /dev/null
+++ b/etc/systemd/timesyncd.conf.d/google.conf
@@ -0,0 +1,7 @@
+# WARNING: Leap second smearing! Don't use with anything else!
+# The config comes from https://developers.google.com/time/guides but I
+# already have a FallbackNTP so it needs to be erased as well.
+#[Time]
+#NTP=
+#FallbackNTP=
+#FallbackNTP=time.google.com