js obtient le fuseau horaire IANA
console.log(Intl.DateTimeFormat().resolvedOptions().timeZone)
Dangerous Dove
console.log(Intl.DateTimeFormat().resolvedOptions().timeZone)// this example takes 2 seconds to run
const start = Date.now();
console.log('starting timer...');
// expected output: starting timer...
setTimeout(() => {
const millis = Date.now() - start;
console.log(`seconds elapsed = ${Math.floor(millis/1000)}`);
// expected output : seconds elapsed = 2
}, 2000);