let now = new Date()

let options: Intl.DateTimeFormatOptions = {
    year: "2-digit",
    month: "2-digit",
    day: "2-digit",
    hour: "numeric",
    minute: "2-digit"
}

let shortStyleEn = now
    .toLocaleString("en-US", options)
//shortStyleEn is "11/25/21, 1:25 PM"

options.hour = "2-digit"
options.timeZone = 'UTC'
let shortStyleRu = now
    .toLocaleString("ru-Ru", options)
//shortStyleRu is "25.11.21, 01:25"

let customStyle = now.toJSON().slice(0, 10)
//customStyle is "2021-11-25"

console.log(`shortStyleEn is "${shortStyleEn}"`)
console.log(`shortStyleRu is "${shortStyleRu}"`)
console.log(`customStyle is "${customStyle}"`)