server sync method about dayjs

[Imperat]

This library don't have this feature. You can send to client the number in unix format and check it manually. For example:

const serverTime = // get it how you want
const client = dayjs();
// If difference between client and server time greater than 10 min
if (Math.abs(client.valueOf() - serverTime) < 1000 * 60 * 10) {
  // Big problem
}

[iamkun]

Thanks @Imperat , agreed. It's out of the library's ability.