diff --git a/src/stringifier.js b/src/stringifier.js
index 6549149..dab47f0 100644
--- a/src/stringifier.js
+++ b/src/stringifier.js
@@ -6,7 +6,8 @@ function pad00(n) {
   return `00${n}`.slice(-2);
 }
 
-export function stringifyTime(t) {
+export function stringifyTime(tf) {
+  const t = Number.parseFloat(tf.toFixed(2));
   const ms = t.toFixed(2).slice(-2);
   const s = (t | 0) % 60;
   const m = (t / 60 | 0) % 60;
diff --git a/test/stringifier.js b/test/stringifier.js
index df2f9c1..3284b3b 100644
--- a/test/stringifier.js
+++ b/test/stringifier.js
@@ -6,6 +6,7 @@ import { parsed, stringified, parsed2, stringified2 } from './fixtures/stringifi
 describe('ASS stringifier', () => {
   it('should stringify time', () => {
     expect(stringifyTime(0)).to.equal('0:00:00.00');
+    expect(stringifyTime(15.999)).to.equal('0:00:16.00');
     expect(stringifyTime(5025.67)).to.equal('1:23:45.67');
   });