I used this code in one of my Dutch apps, for the currency:
if (Platform.OS === 'android') {
// only android needs polyfill
await require('intl'); // import intl object
await require('intl/locale-data/jsonp/nl-NL'); // load the required locale detail
}
const balance = 1990.99;
console.log(
'My dutch bank account, balance:',
new Intl.NumberFormat('nl-NL', { style: 'currency', currency: 'EUR' }).format(balance)
);
Maybe the Intl DateTimeFormat function will do the job on android, for your date.