diff --git a/packages/discord.js/src/structures/Invite.js b/packages/discord.js/src/structures/Invite.js
index cf0f8de0d..243a243e5 100644
--- a/packages/discord.js/src/structures/Invite.js
+++ b/packages/discord.js/src/structures/Invite.js
@@ -188,8 +188,11 @@ class Invite extends Base {
       this.createdTimestamp ??= null;
     }
 
-    if ('expires_at' in data) this._expiresTimestamp = Date.parse(data.expires_at);
-    else this._expiresTimestamp ??= null;
+    if ('expires_at' in data) {
+      this._expiresTimestamp = data.expires_at && Date.parse(data.expires_at);
+    } else {
+      this._expiresTimestamp ??= null;
+    }
 
     if ('stage_instance' in data) {
       /**
diff --git a/packages/discord.js/src/structures/VoiceState.js b/packages/discord.js/src/structures/VoiceState.js
index 75411fdaa..0e4862e61 100644
--- a/packages/discord.js/src/structures/VoiceState.js
+++ b/packages/discord.js/src/structures/VoiceState.js
@@ -121,7 +121,7 @@ class VoiceState extends Base {
        * The time at which the member requested to speak. This property is specific to stage channels only.
        * @type {?number}
        */
-      this.requestToSpeakTimestamp = Date.parse(data.request_to_speak_timestamp);
+      this.requestToSpeakTimestamp = data.request_to_speak_timestamp && Date.parse(data.request_to_speak_timestamp);
     } else {
       this.requestToSpeakTimestamp ??= null;
     }