Why does this JS script not work in Safari?

Question

JavaScript

Here is the actual script and example: Example
In Chrome it works fine, in Safari it returns NaN

Answer 1

Because in Date.parse you are feeding garbage
chrome -> Date.parse('2021-07-06 08:15:00') -> 1625548500000
safari -> Date.parse('2021-07-06 08:15:00' ) -> null
would be correct
Date.parse('2021-07-06T08:15:00.0Z')
only with a more careful time zone