From 212ea87fbb19929f20edfeb5f6613f007f81afe7 Mon Sep 17 00:00:00 2001
From: Jeroen Akkerman <jeroen.akkerman1@gmail.com>
Date: Tue, 23 Apr 2019 22:43:46 +0200
Subject: [PATCH] Allow `null` and `undefined` as start parameter. (#34896)

According to the documentation, this indicates "now".
---
 types/countdown/countdown-tests.ts | 3 +++
 types/countdown/index.d.ts         | 4 ++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/types/countdown/countdown-tests.ts b/types/countdown/countdown-tests.ts
index 345a4be5ed..45ea302a2f 100644
--- a/types/countdown/countdown-tests.ts
+++ b/types/countdown/countdown-tests.ts
@@ -6,6 +6,9 @@ let interval: number;
 ts = <countdown.Timespan>countdown(new Date());
 ts = <countdown.Timespan>countdown(150);
 
+ts = <countdown.Timespan>countdown(undefined, Date.now() + 60000);
+ts = <countdown.Timespan>countdown(Date.now() - 60000, null);
+
 interval = <number>countdown(new Date(),
     function (ts: countdown.Timespan) {
         document.getElementById('pageTimer').innerHTML = ts.toHTML('strong');
diff --git a/types/countdown/index.d.ts b/types/countdown/index.d.ts
index 9b00293185..b5b3d5359c 100644
--- a/types/countdown/index.d.ts
+++ b/types/countdown/index.d.ts
@@ -1,11 +1,11 @@
 // Type definitions for countdown.js
 // Project: http://countdownjs.org/
-// Definitions by: Gabriel Juchault <https://github.com/gjuchault>
+// Definitions by: Gabriel Juchault <https://github.com/gjuchault>, Ionaru <https://github.com/Ionaru>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 declare namespace countdown {
   type DateFunction = (timespan: Timespan) => void;
-  type DateTime = number | Date | DateFunction;
+  type DateTime = number | Date | DateFunction | null | undefined;
 
   interface Timespan {
       start?: Date;