Date 800x slower than JSC
- Dominant language
- JavaScript
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Description
## Bug Description
Date so slow that it can be freeze app. Impossible to use third party date library(much worse perf, 1800x).
I found that **local date** is a problem. UTC date still slow but not 800x, just 8x slower than JSC which can be ignored.
The **code** outputs:
JSC: 0.2605330003425479
Hermes: 166.44708999991417
Hermes UTC: 1.6460870001465082
- [x] I have run `gradle clean` and confirmed this bug does not occur with JSC
Hermes version: Bundled version with RN 0.71.3
React Native version (if any): 0.71.3
OS version (if any): iPhone 14 (simulator)
Platform (most likely one of arm64-v8a, armeabi-v7a, x86, x86_64):
## Steps To Reproduce
1. Create initial app with latest RN version.
2. Add somewhere the code that down below. Look console to see the numbers.
code example:
```js
var a = performance.now();
Array(1000)
.fill(0)
.map(() => {
new Date(new Date().setMonth(1));
// fast utc version
// new Date(new Date().setUTCMonth(1));
});
var b = performance.now();
console.log(b - a);
```
## The Expected Behavior
Fast Date operations.
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