diff --git a/include/protocol.h b/include/protocol.h
index 82d97d30b..744c776d3 100644
--- a/include/protocol.h
+++ b/include/protocol.h
@@ -58,6 +58,14 @@ public:
 	 */
 	virtual bool Parse(const Anope::string &message, Anope::map<Anope::string> &tags, Anope::string &source, Anope::string &command, std::vector<Anope::string> &params);
 
+	/* Populates the tags that should be sent on all messages.
+	 * @param tags The location to store tags.
+	 * @param source Source of the message.
+	 * @param command Command name.
+	 * @param params Any extra parameters.
+	 */
+	virtual void PopulateTags(Anope::map<Anope::string> &tags, const MessageSource &source, const Anope::string &command, const std::vector<Anope::string> &params);
+
 	/* Formats an outgoing message so it can be sent to the IRC server.
 	 * @param message The location to store the formatted message.
 	 * @param tags IRCv3 message tags.
diff --git a/src/process.cpp b/src/process.cpp
index 5dce80fce..045322176 100644
--- a/src/process.cpp
+++ b/src/process.cpp
@@ -100,6 +100,13 @@ void Anope::ProcessInternal(MessageSource &src, const Anope::string &command, co
 	}
 }
 
+void IRCDProto::PopulateTags(Anope::map<Anope::string> &tags, const MessageSource &source, const Anope::string &command, const std::vector<Anope::string> &params)
+{
+	auto it = tags.find("time"); // https://ircv3.net/specs/extensions/server-time
+	if (it == tags.end())
+		tags["time"] = Anope::FormatISO8601(Anope::CurTime, Anope::CurTimeNs / 1'000'000);
+}
+
 bool IRCDProto::Parse(const Anope::string &buffer, Anope::map<Anope::string> &tags, Anope::string &source, Anope::string &command, std::vector<Anope::string> &params)
 {
 	MessageTokenizer tokens(buffer);
diff --git a/src/uplink.cpp b/src/uplink.cpp
index c43fd770a..812e2d1ad 100644
--- a/src/uplink.cpp
+++ b/src/uplink.cpp
@@ -73,8 +73,11 @@ void Uplink::SendInternal(const Anope::map<Anope::string> &tags, const MessageSo
 		return;
 	}
 
+	Anope::map<Anope::string> fulltags(tags);
+	IRCD->PopulateTags(fulltags, source, command, params);
+
 	Anope::string message;
-	if (!IRCD->Format(message, tags, source, command, params))
+	if (!IRCD->Format(message, fulltags, source, command, params))
 		return;
 
 	UplinkSock->sent_msgs++;
@@ -84,7 +87,7 @@ void Uplink::SendInternal(const Anope::map<Anope::string> &tags, const MessageSo
 	if (Anope::ProtocolDebug)
 	{
 		auto sent_tag = false;
-		for (const auto &[tname, tvalue] : tags)
+		for (const auto &[tname, tvalue] : fulltags)
 		{
 			if (IRCD->IsTagValid(tname, tvalue))
 			{