diff --git a/activity.go b/activity.go
index c152eaa..0ed6f02 100644
--- a/activity.go
+++ b/activity.go
@@ -1317,7 +1317,8 @@ var handfull = cache.New(cache.Options{Filler: func(name string) (string, bool)
 		rel, _ := l.GetString("rel")
 		t, _ := l.GetString("type")
 		if rel == "self" && friendorfoe(t) {
-			_, err := stmtSaveXonker.Exec(name, href, "fishname")
+			when := time.Now().UTC().Format(dbtimeformat)
+			_, err := stmtSaveXonker.Exec(name, href, "fishname", when)
 			if err != nil {
 				log.Printf("error saving fishname: %s", err)
 			}
@@ -1430,7 +1431,8 @@ func ingestpubkey(origin string, obj junk.Junk) {
 		log.Printf("error decoding %s pubkey: %s", keyname, err)
 		return
 	}
-	_, err = stmtSaveXonker.Exec(keyname, data, "pubkey")
+	when := time.Now().UTC().Format(dbtimeformat)
+	_, err = stmtSaveXonker.Exec(keyname, data, "pubkey", when)
 	if err != nil {
 		log.Printf("error saving key: %s", err)
 	}
@@ -1455,8 +1457,9 @@ func ingestboxes(origin string, obj junk.Junk) {
 	outbox, _ := obj.GetString("outbox")
 	sbox, _ := obj.GetString("endpoints", "sharedInbox")
 	if inbox != "" {
+		when := time.Now().UTC().Format(dbtimeformat)
 		m := strings.Join([]string{inbox, outbox, sbox}, " ")
-		_, err = stmtSaveXonker.Exec(ident, m, "boxes")
+		_, err = stmtSaveXonker.Exec(ident, m, "boxes", when)
 		if err != nil {
 			log.Printf("error saving boxes: %s", err)
 		}
@@ -1479,7 +1482,8 @@ func ingesthandle(origin string, obj junk.Junk) {
 	}
 	handle, _ = obj.GetString("preferredUsername")
 	if handle != "" {
-		_, err = stmtSaveXonker.Exec(xid, handle, "handle")
+		when := time.Now().UTC().Format(dbtimeformat)
+		_, err = stmtSaveXonker.Exec(xid, handle, "handle", when)
 		if err != nil {
 			log.Printf("error saving handle: %s", err)
 		}
diff --git a/database.go b/database.go
index 2402a46..1af843c 100644
--- a/database.go
+++ b/database.go
@@ -760,8 +760,8 @@ func prepareStatements(db *sql.DB) {
 	stmtGetZonkers = preparetodie(db, "select zonkerid, name, wherefore from zonkers where userid = ? and wherefore <> 'zonk'")
 	stmtSaveZonker = preparetodie(db, "insert into zonkers (userid, name, wherefore) values (?, ?, ?)")
 	stmtGetXonker = preparetodie(db, "select info from xonkers where name = ? and flavor = ?")
-	stmtSaveXonker = preparetodie(db, "insert into xonkers (name, info, flavor) values (?, ?, ?)")
-	stmtDeleteXonker = preparetodie(db, "delete from xonkers where name = ? and flavor = ?")
+	stmtSaveXonker = preparetodie(db, "insert into xonkers (name, info, flavor, dt) values (?, ?, ?, ?)")
+	stmtDeleteXonker = preparetodie(db, "delete from xonkers where name = ? and flavor = ? and dt < ?")
 	stmtRecentHonkers = preparetodie(db, "select distinct(honker) from honks where userid = ? and honker not in (select xid from honkers where userid = ? and flavor = 'sub') order by honkid desc limit 100")
 	stmtUpdateFlags = preparetodie(db, "update honks set flags = flags | ? where honkid = ?")
 	stmtClearFlags = preparetodie(db, "update honks set flags = flags & ~ ? where honkid = ?")
diff --git a/schema.go b/schema.go
index a78fb24..82464e7 100644
--- a/schema.go
+++ b/schema.go
@@ -6,7 +6,7 @@ create table honks (honkid integer primary key, userid integer, what text, honke
 create table donks (honkid integer, fileid integer);
 create table filemeta (fileid integer primary key, xid text, name text, description text, url text, media text, local integer);
 create table honkers (honkerid integer primary key, userid integer, name text, xid text, flavor text, combos text, owner text);
-create table xonkers (xonkerid integer primary key, name text, info text, flavor text);
+create table xonkers (xonkerid integer primary key, name text, info text, flavor text, dt text);
 create table zonkers (zonkerid integer primary key, userid integer, name text, wherefore text);
 create table doovers(dooverid integer primary key, dt text, tries integer, userid integer, rcpt text, msg blob);
 create table onts (ontology text, honkid integer);
diff --git a/schema.sql b/schema.sql
index 0587f73..db02483 100644
--- a/schema.sql
+++ b/schema.sql
@@ -3,7 +3,7 @@ create table honks (honkid integer primary key, userid integer, what text, honke
 create table donks (honkid integer, fileid integer);
 create table filemeta (fileid integer primary key, xid text, name text, description text, url text, media text, local integer);
 create table honkers (honkerid integer primary key, userid integer, name text, xid text, flavor text, combos text, owner text);
-create table xonkers (xonkerid integer primary key, name text, info text, flavor text);
+create table xonkers (xonkerid integer primary key, name text, info text, flavor text, dt text);
 create table zonkers (zonkerid integer primary key, userid integer, name text, wherefore text);
 create table doovers(dooverid integer primary key, dt text, tries integer, userid integer, rcpt text, msg blob);
 create table onts (ontology text, honkid integer);
diff --git a/upgradedb.go b/upgradedb.go
index 828349a..3c968b9 100644
--- a/upgradedb.go
+++ b/upgradedb.go
@@ -24,7 +24,7 @@ import (
 	"time"
 )
 
-var myVersion = 32
+var myVersion = 33
 
 func doordie(db *sql.DB, s string, args ...interface{}) {
 	_, err := db.Exec(s, args...)
@@ -356,6 +356,11 @@ func upgradedb() {
 		doordie(db, "update config set value = 32 where key = 'dbversion'")
 		fallthrough
 	case 32:
+		doordie(db, "alter table xonkers add column dt text")
+		doordie(db, "update xonkers set dt = ?", time.Now().UTC().Format(dbtimeformat))
+		doordie(db, "update config set value = 33 where key = 'dbversion'")
+		fallthrough
+	case 33:
 
 	default:
 		log.Fatalf("can't upgrade unknown version %d", dbversion)