diff --git a/doc/release-notes.md b/doc/release-notes.md
index 4ef94cf754..fced86254a 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -104,6 +104,10 @@ Updated RPCs
   with the `-json` option set, the following fields: `addresses`, `reqSigs` are no longer
   returned in the tx output of the response. (#20286)
 
+- The `listbanned` RPC now returns two new numeric fields: `ban_duration` and `time_remaining`.
+  Respectively, these new fields indicate the duration of a ban and the time remaining until a ban expires,
+  both in seconds. Additionally, the `ban_created` field is repositioned to come before `banned_until`. (#21602)
+
 Changes to Wallet or GUI related RPCs can be found in the GUI or Wallet section below.
 
 New RPCs
diff --git a/src/rpc/net.cpp b/src/rpc/net.cpp
index 9ace33d529..337f861903 100644
--- a/src/rpc/net.cpp
+++ b/src/rpc/net.cpp
@@ -749,9 +749,11 @@ static RPCHelpMan listbanned()
             {
                 {RPCResult::Type::OBJ, "", "",
                     {
-                        {RPCResult::Type::STR, "address", ""},
-                        {RPCResult::Type::NUM_TIME, "banned_until", ""},
-                        {RPCResult::Type::NUM_TIME, "ban_created", ""},
+                        {RPCResult::Type::STR, "address", "The IP/Subnet of the banned node"},
+                        {RPCResult::Type::NUM_TIME, "ban_created", "The " + UNIX_EPOCH_TIME + " the ban was created"},
+                        {RPCResult::Type::NUM_TIME, "banned_until", "The " + UNIX_EPOCH_TIME + " the ban expires"},
+                        {RPCResult::Type::NUM_TIME, "ban_duration", "The ban duration, in seconds"},
+                        {RPCResult::Type::NUM_TIME, "time_remaining", "The time remaining until the ban expires, in seconds"},
                     }},
             }},
                 RPCExamples{
@@ -767,6 +769,7 @@ static RPCHelpMan listbanned()
 
     banmap_t banMap;
     node.banman->GetBanned(banMap);
+    const int64_t current_time{GetTime()};
 
     UniValue bannedAddresses(UniValue::VARR);
     for (const auto& entry : banMap)
@@ -774,8 +777,10 @@ static RPCHelpMan listbanned()
         const CBanEntry& banEntry = entry.second;
         UniValue rec(UniValue::VOBJ);
         rec.pushKV("address", entry.first.ToString());
-        rec.pushKV("banned_until", banEntry.nBanUntil);
         rec.pushKV("ban_created", banEntry.nCreateTime);
+        rec.pushKV("banned_until", banEntry.nBanUntil);
+        rec.pushKV("ban_duration", (banEntry.nBanUntil - banEntry.nCreateTime));
+        rec.pushKV("time_remaining", (banEntry.nBanUntil - current_time));
 
         bannedAddresses.push_back(rec);
     }
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index e2f8725fcb..3b6faf7bbb 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -269,9 +269,9 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
     ar = r.get_array();
     o1 = ar[0].get_obj();
     adr = find_value(o1, "address");
-    UniValue banned_until = find_value(o1, "banned_until");
+    int64_t banned_until{find_value(o1, "banned_until").get_int64()};
     BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/24");
-    BOOST_CHECK_EQUAL(banned_until.get_int64(), 9907731200); // absolute time check
+    BOOST_CHECK_EQUAL(banned_until, 9907731200); // absolute time check
 
     BOOST_CHECK_NO_THROW(CallRPC(std::string("clearbanned")));
 
@@ -280,11 +280,16 @@ BOOST_AUTO_TEST_CASE(rpc_ban)
     ar = r.get_array();
     o1 = ar[0].get_obj();
     adr = find_value(o1, "address");
-    banned_until = find_value(o1, "banned_until");
+    banned_until = find_value(o1, "banned_until").get_int64();
+    const int64_t ban_created{find_value(o1, "ban_created").get_int64()};
+    const int64_t ban_duration{find_value(o1, "ban_duration").get_int64()};
+    const int64_t time_remaining{find_value(o1, "time_remaining").get_int64()};
+    const int64_t now{GetTime()};
     BOOST_CHECK_EQUAL(adr.get_str(), "127.0.0.0/24");
-    int64_t now = GetTime();
-    BOOST_CHECK(banned_until.get_int64() > now);
-    BOOST_CHECK(banned_until.get_int64()-now <= 200);
+    BOOST_CHECK(banned_until > now);
+    BOOST_CHECK(banned_until - now <= 200);
+    BOOST_CHECK_EQUAL(ban_duration, banned_until - ban_created);
+    BOOST_CHECK_EQUAL(time_remaining, banned_until - now);
 
     // must throw an exception because 127.0.0.1 is in already banned subnet range
     BOOST_CHECK_THROW(r = CallRPC(std::string("setban 127.0.0.1 add")), std::runtime_error);