Add missing sent date tag

packages/chat/src/caps/twitchCommands/messageTypes/ClearChat.ts

@@ -15,6 +15,11 @@ export class ClearChat extends Message<ClearChat> {
 	})
 	user!: MessageParam;
 
+	get date(): Date {
+		const timestamp = this._tags.get('tmi-sent-ts')!;
+		return new Date(Number(timestamp));
+	}
+
 	get channelId(): string {
 		return this._tags.get('room-id')!;
 	}

packages/chat/src/caps/twitchCommands/messageTypes/UserNotice.ts

@@ -22,6 +22,11 @@ export class UserNotice extends Message<UserNotice> {
 		return this._tags.get('id')!;
 	}
 
+	get date(): Date {
+		const timestamp = this._tags.get('tmi-sent-ts')!;
+		return new Date(Number(timestamp));
+	}
+
 	get userInfo(): ChatUser {
 		return new ChatUser(this._tags.get('login')!, this._tags);
 	}

packages/chat/src/caps/twitchTags/messageTypes/ClearMsg.ts

@@ -17,6 +17,11 @@ export class ClearMsg extends Message<ClearMsg> {
 	})
 	message!: MessageParam;
 
+	get date(): Date {
+		const timestamp = this._tags.get('tmi-sent-ts')!;
+		return new Date(Number(timestamp));
+	}
+
 	get userName(): string {
 		return this._tags.get('login')!;
 	}

packages/chat/src/commands/TwitchPrivateMessage.ts

@@ -16,6 +16,14 @@ export class TwitchPrivateMessage extends MessageTypes.Commands.PrivateMessage {
 		return this._tags.get('id')!;
 	}
 
+	/**
+	 * The date the message was sent at.
+	 */
+	get date(): Date {
+		const timestamp = this._tags.get('tmi-sent-ts')!;
+		return new Date(Number(timestamp));
+	}
+
 	/**
 	 * Info about the user that send the message, like their user ID and their status in the current channel.
 	 */