From fd41dfc135b8ac21b2ca7d6eecc71845d72f2630 Mon Sep 17 00:00:00 2001
From: Mike Yuan <me@yhndnzj.com>
Date: Tue, 18 Jun 2024 18:37:44 +0200
Subject: [PATCH] man/systemd.journal-fields: document
 _SOURCE_{MONOTONIC,BOOTTIME}_TIMESTAMP

Follow-up for a9357c2ce2d188b5b63592fd271f14d335867c23
---
 man/systemd.journal-fields.xml | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
index 7beee9db569..bf5ac09cf67 100644
--- a/man/systemd.journal-fields.xml
+++ b/man/systemd.journal-fields.xml
@@ -272,11 +272,21 @@
 
       <varlistentry>
         <term><varname>_SOURCE_REALTIME_TIMESTAMP=</varname></term>
+        <term><varname>_SOURCE_MONOTONIC_TIMESTAMP=</varname></term>
         <listitem>
-          <para>The earliest trusted timestamp of the message, if any
-          is known that is different from the reception time of the
-          journal. This is the time in microseconds since the epoch
-          UTC, formatted as a decimal string.</para>
+          <para>The earliest trusted timestamp of the message, if any is known that is different from
+          the reception time of the journal. These are the <constant>CLOCK_REALTIME</constant> and
+          <constant>CLOCK_MONOTONIC</constant> clocks in microseconds, formatted as decimal strings.</para>
+        </listitem>
+      </varlistentry>
+
+      <varlistentry>
+        <term><varname>_SOURCE_BOOTTIME_TIMESTAMP=</varname></term>
+        <listitem>
+          <para>The earliest trusted timestamp of the message in <constant>CLOCK_BOOTTIME</constant> clock.
+          For details, refer to <varname>_SOURCE_MONOTONIC_TIMESTAMP=</varname>.</para>
+
+          <xi:include href="version-info.xml" xpointer="v257"/>
         </listitem>
       </varlistentry>