diff --git a/src/index.ts b/src/index.ts
index d50e3c7..24ea52c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -75,7 +75,7 @@ export function parse(str: string): number {
     );
   }
   const match =
-    /^(?<value>-?\d*\.?\d+) *(?<unit>milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|months?|mo|years?|yrs?|y)?$/i.exec(
+    /^(?<value>-?\d*\.?\d+(?:[eE][-+]?\d+)?) *(?<unit>milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|months?|mo|years?|yrs?|y)?$/i.exec(
       str,
     );
 
diff --git a/src/parse.test.ts b/src/parse.test.ts
index 9182411..18c2ea0 100644
--- a/src/parse.test.ts
+++ b/src/parse.test.ts
@@ -2,6 +2,10 @@ import { describe, expect, it } from '@jest/globals';
 import { parse } from './index';
 
 describe('parse(string)', () => {
+  it('should support scientific notation', () => {
+    expect(parse('5.696545792019405e+297y')).toBe(5.696545792019405e+297 * 31557600000);
+    expect(parse('1.5e3ms')).toBe(1500);
+  });
   it('should not throw an error', () => {
     expect(() => {
       parse('1m');