Index: lib/libc/sys/clock_gettime.2
===================================================================
--- lib/libc/sys/clock_gettime.2
+++ lib/libc/sys/clock_gettime.2
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 8, 2022
+.Dd August 3, 2022
 .Dt CLOCK_GETTIME 2
 .Os
 .Sh NAME
@@ -125,7 +125,9 @@
 .Dv CLOCK_BOOTTIME
 is an alias for
 .Dv CLOCK_UPTIME
-for compatibility with other systems.
+for compatibility with other systems (which is unrelated to the
+.Fa kern.bootitme
+.Xr sysctl 8 ) .
 .Pp
 The structure pointed to by
 .Fa tp