diff --git a/types/humanize-duration/humanize-duration-tests.ts b/types/humanize-duration/humanize-duration-tests.ts
new file mode 100644
index 0000000000..95cdf16f51
--- /dev/null
+++ b/types/humanize-duration/humanize-duration-tests.ts
@@ -0,0 +1,93 @@
+import humanizeDuration from "humanize-duration";
+
+humanizeDuration(3000);      // '3 seconds'
+humanizeDuration(2250);      // '2.25 seconds'
+humanizeDuration(97320000);  // '1 day, 3 hours, 2 minutes'
+
+humanizeDuration(3000, { language: "es" });  // '3 segundos'
+humanizeDuration(5000, { language: "ko" });  // '5 초'
+
+humanizeDuration(3000, { language: "en", fallbacks: ["en"] });  // '3 seconds'
+humanizeDuration(3000, { language: "bad language", fallbacks: ["bad language", "es"] });  // '3 segundos'
+
+humanizeDuration(22140000, { delimiter: " and " });  // '6 hours and 9 minutes'
+humanizeDuration(22140000, { delimiter: "--" });     // '6 hours--9 minutes'
+
+humanizeDuration(260040000, { spacer: " whole " });  // '3 whole days, 14 whole minutes'
+humanizeDuration(260040000, { spacer: "" });         // '3days, 14minutes'
+
+humanizeDuration(1000000000000);                  // '31 years, 8 months, 1 week, 19 hours, 46 minutes, 40 seconds'
+humanizeDuration(1000000000000, { largest: 2 });  // '31 years, 8 month'
+
+humanizeDuration(3600000, { units: ["h"] });       // '1 hour'
+humanizeDuration(3600000, { units: ["m"] });       // '60 minutes'
+humanizeDuration(3600000, { units: ["d", "h"] });  // '1 hour'
+
+humanizeDuration(1200);                   // '1.2 seconds'
+humanizeDuration(1200, { round: true });  // '1 second'
+humanizeDuration(1600, { round: true });  // '2 seconds'
+
+humanizeDuration(1200);                          // '1.2 seconds'
+humanizeDuration(1200, { decimal: " point " });  // '1 point 2 seconds'
+
+humanizeDuration(22140000, { conjunction: " and " });                      // '6 hours and 9 minutes'
+humanizeDuration(22141000, { conjunction: " and " });                      // '6 hours, 9 minutes, and 1 second'
+humanizeDuration(22140000, { conjunction: " and ", serialComma: false });  // '6 hours and 9 minutes'
+humanizeDuration(22141000, { conjunction: " and ", serialComma: false });  // '6 hours, 9 minutes and 1 second'
+
+humanizeDuration(8123.456789); // 8.12 seconds
+humanizeDuration(8123.456789, { maxDecimalPoints: 3 }); // 8.123 seconds
+humanizeDuration(8123.456789, { maxDecimalPoints: 6 }); // 8.123456 seconds
+humanizeDuration(8123.45, { maxDecimalPoints: 6 }); // 8.12345 seconds
+humanizeDuration(8000, { maxDecimalPoints: 6 }); // 8 seconds
+
+humanizeDuration(400);    // '0.4 seconds'
+humanizeDuration(400, {  // '1 year, 1 month, 5 days'
+  unitMeasures: {
+    d: 1,
+    mo: 30,
+    w: 7,
+    y: 365,
+  },
+});
+
+humanizeDuration(3602000, {
+  language: "es",
+  round: true,
+  spacer: " glorioso ",
+  units: ["m"],
+}); // '60 glorioso minutos'
+
+const spanishHumanizer = humanizeDuration.humanizer({
+  language: "es",
+  units: ["y", "mo", "d"],
+});
+
+spanishHumanizer(71177400000);  // '2 años, 3 meses, 2 días'
+spanishHumanizer(71177400000, { units: ["d", "h"] });  // '823 días, 19.5 horas'
+
+const shortEnglishHumanizer = humanizeDuration.humanizer({
+  language: "shortEn",
+  languages: {
+    shortEn: {
+      d: () => "d",
+      h: () => "h",
+      m: () => "m",
+      mo: () => "mo",
+      ms: () => "ms",
+      s: () => "s",
+      w: () => "w",
+      y: () => "y",
+    },
+  },
+});
+
+shortEnglishHumanizer(15600000);  // '4 h, 20 m'
+
+const humanizer = humanizeDuration.humanizer();
+
+humanizer.languages.shortEn = {
+  y: () => "y",
+};
+
+humanizeDuration.getSupportedLanguages();
diff --git a/types/humanize-duration/index.d.ts b/types/humanize-duration/index.d.ts
new file mode 100644
index 0000000000..b27ff8c974
--- /dev/null
+++ b/types/humanize-duration/index.d.ts
@@ -0,0 +1,111 @@
+// Type definitions for humanize-duration 3.18
+// Project: https://github.com/EvanHahn/HumanizeDuration.js
+// Definitions by: Rigoberto Molina <https://github.com/RigoTheDev>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+export as namespace humanizeDuration;
+
+export = HumanizeDuration;
+
+declare function HumanizeDuration(ms: number, options?: HumanizeDuration.Options): string;
+
+declare namespace HumanizeDuration {
+  type LanguageCode = (
+    "ar" | "bg" | "ca" | "zh_CN" | "zh_TW" | "hr" | "cs" | "da" |
+    "nl" | "en" | "fa" | "fi" | "fr" | "de" | "el" | "hu" | "is" |
+    "id" | "it" | "ja" | "ko" | "lo" | "lt" | "ms" | "no" | "pl" |
+    "pt" | "ro" | "ru" | "sk" | "es" | "sv" | "tr" | "th" | "uk" |
+    "ur" | "vi"
+  );
+  type Unit = "y" | "mo" | "w" | "d" | "h" | "m" | "s" | "ms";
+  interface UnitMeasuresOptions {
+    y?: number;
+    mo?: number;
+    w?: number;
+    d?: number;
+    h?: number;
+    m?: number;
+    s?: number;
+    ms?: number;
+  }
+
+  interface UnitTranslationOptions {
+    y?: () => string;
+    mo?: () => string;
+    w?: () => string;
+    d?: () => string;
+    h?: () => string;
+    m?: () => string;
+    s?: () => string;
+    ms?: () => string;
+  }
+
+  interface Options {
+    /**
+     * Language for unit display (accepts an ISO 639-1 code from one of the supported languages).
+     */
+    language?: string;
+    /**
+     * Fallback languages if the provided language cannot be found (accepts an ISO 639-1 code from one of the supported languages). It works from left to right.
+     */
+    fallbacks?: string[];
+    /**
+     * String to display between the previous unit and the next value.
+     */
+    delimiter?: string;
+    /**
+     * String to display between each value and unit.
+     */
+    spacer?: string;
+    /**
+     * Number representing the maximum number of units to display for the duration.
+     */
+    largest?: number;
+    /**
+     * Array of strings to define which units are used to display the duration (if needed).
+     */
+    units?: Unit[];
+    /**
+     * Boolean value. Use true to round the smallest unit displayed (can be combined with largest and units).
+     */
+    round?: boolean;
+    /**
+     * String to substitute for the decimal point in a decimal fraction.
+     */
+    decimal?: string;
+    /**
+     * String to include before the final unit. You can also set serialComma to false to eliminate the final comma.
+     */
+    conjunction?: string;
+    serialComma?: boolean;
+    /**
+     * Number that defines a maximal decimal points for float values.
+     */
+    maxDecimalPoints?: number;
+    /**
+     * Customize the value used to calculate each unit of time.
+     */
+    unitMeasures?: UnitMeasuresOptions;
+  }
+
+  interface HumanizerOptions extends Options {
+    languages?: {
+      [key: string]: UnitTranslationOptions;
+    };
+  }
+
+  interface Humanizer {
+    (ms: number, options?: Options): string;
+    languages: {
+      [x: string]: UnitTranslationOptions;
+    };
+  }
+
+  function humanizer(options?: HumanizerOptions): Humanizer;
+
+  /**
+   * This function won't return any new languages you define; it will only return the defaults supported by the library.
+   */
+  function getSupportedLanguages(): LanguageCode[];
+}
diff --git a/types/humanize-duration/tsconfig.json b/types/humanize-duration/tsconfig.json
new file mode 100644
index 0000000000..ef6b99f73b
--- /dev/null
+++ b/types/humanize-duration/tsconfig.json
@@ -0,0 +1,24 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "allowSyntheticDefaultImports": true,
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "humanize-duration-tests.ts"
+    ]
+}
diff --git a/types/humanize-duration/tslint.json b/types/humanize-duration/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/humanize-duration/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }