diff --git a/README.md b/README.md
index 9833523d..bdbee794 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ Xiao is a Discord bot coded in JavaScript with
 The bot is no longer available for invite. You can self-host the bot, or use her
 on the [home server](https://discord.gg/sbMe32W).
 
-## Commands (321)
+## Commands (322)
 ### Utility:
 
 * **eval:** Executes JavaScript code.
@@ -115,6 +115,7 @@ on the [home server](https://discord.gg/sbMe32W).
 * **google-doodle:** Responds with a Google Doodle, either the latest one or a random one from the past.
 * **horoscope:** Responds with today's horoscope for a specific Zodiac sign.
 * **humble-bundle:** Responds with the current Humble Bundle.
+* **is-tuesday:** Determines if today is Tuesday.
 * **neko-atsume-password:** Responds with today's Neko Atsume password.
 * **time:** Responds with the current time in a particular location.
 * **today-in-history:** Responds with an event that occurred today in history.
diff --git a/commands/events/is-tuesday.js b/commands/events/is-tuesday.js
new file mode 100644
index 00000000..c5eaff2e
--- /dev/null
+++ b/commands/events/is-tuesday.js
@@ -0,0 +1,18 @@
+const Command = require('../../structures/Command');
+const isTuesday = require('is-tuesday');
+
+module.exports = class IsTuesdayCommand extends Command {
+	constructor(client) {
+		super(client, {
+			name: 'is-tuesday',
+			aliases: ['is-it-tuesday', 'tuesday'],
+			group: 'events',
+			memberName: 'is-tuesday',
+			description: 'Determines if today is Tuesday.'
+		});
+	}
+
+	run(msg) {
+		return msg.say(`Today is${isTuesday() ? '' : ' **not**'} Tuesday.`);
+	}
+};
diff --git a/package.json b/package.json
index e355abdc..72c9c612 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "xiao",
-	"version": "91.14.3",
+	"version": "91.15.0",
 	"description": "Your personal server companion.",
 	"main": "Xiao.js",
 	"scripts": {
@@ -41,6 +41,7 @@
 		"discord.js-commando": "github:discordjs/Commando",
 		"dotenv": "^6.0.0",
 		"erlpack": "github:discordapp/erlpack",
+		"is-tuesday": "^1.0.0",
 		"mathjs": "^5.1.2",
 		"moment": "^2.22.2",
 		"moment-duration-format": "^2.2.2",