loilo

function getLocalISOString(date) {
  const offset = date.getTimezoneOffset()
  const offsetAbs = Math.abs(offset)
  const isoString = new Date(date.getTime() - offset * 60 * 1000).toISOString()
  return `${isoString.slice(0, -1)}${offset > 0 ? '-' : '+'}${String(Math.floor(offsetAbs / 60)).padStart(2, '0')}:${String(offsetAbs % 60).padStart(2, '0')}`
}

timfreiheit

import android.os.Build;
import android.webkit.JavascriptInterface;
import android.webkit.WebView;

import com.google.gson.Gson;

import java.util.concurrent.Callable;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;