diff --git a/Plan/common/src/main/java/com/djrapitops/plan/gathering/events/PlayerJoinEventConsumer.java b/Plan/common/src/main/java/com/djrapitops/plan/gathering/events/PlayerJoinEventConsumer.java
index 794c79e40..4ee09eb63 100644
--- a/Plan/common/src/main/java/com/djrapitops/plan/gathering/events/PlayerJoinEventConsumer.java
+++ b/Plan/common/src/main/java/com/djrapitops/plan/gathering/events/PlayerJoinEventConsumer.java
@@ -130,8 +130,17 @@ public class PlayerJoinEventConsumer {
                 .ifPresent(dbSystem.getDatabase()::executeTransaction);
     }
 
-    private CompletableFuture<?> storeGamePlayer(PlayerJoin join) {
+    private static long getRegisterDate(PlayerJoin join) {
         long registerDate = join.getPlayer().getRegisterDate().orElseGet(join::getTime);
+        // Correct incorrect register dates https://github.com/plan-player-analytics/Plan/issues/2934
+        if (registerDate < System.currentTimeMillis() / 1000) {
+            registerDate = registerDate * 1000;
+        }
+        return registerDate;
+    }
+
+    private CompletableFuture<?> storeGamePlayer(PlayerJoin join) {
+        long registerDate = getRegisterDate(join);
         String joinAddress = join.getPlayer().getJoinAddress().orElse(JoinAddressTable.DEFAULT_VALUE_FOR_LOOKUP);
         Transaction transaction = new StoreServerPlayerTransaction(
                 join.getPlayerUUID(), registerDate, join.getPlayer().getName(), join.getServerUUID(), joinAddress
diff --git a/Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/events/StoreServerPlayerTransaction.java b/Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/events/StoreServerPlayerTransaction.java
index 54ced4090..7af5b7738 100644
--- a/Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/events/StoreServerPlayerTransaction.java
+++ b/Plan/common/src/main/java/com/djrapitops/plan/storage/database/transactions/events/StoreServerPlayerTransaction.java
@@ -59,7 +59,11 @@ public class StoreServerPlayerTransaction extends PlayerRegisterTransaction {
 
         // Updates register date to smallest possible value.
         Optional<Long> foundRegisterDate = query(PlayerFetchQueries.fetchRegisterDate(playerUUID));
-        if (foundRegisterDate.isPresent() && foundRegisterDate.get() > registerDate) {
+        if (foundRegisterDate.isPresent() &&
+                (foundRegisterDate.get() > registerDate
+                        // Correct incorrect register dates https://github.com/plan-player-analytics/Plan/issues/2934
+                        || foundRegisterDate.get() < System.currentTimeMillis() / 1000)
+        ) {
             execute(DataStoreQueries.updateMainRegisterDate(playerUUID, registerDate));
         }