>>> a = ['Petr','Ivan','Sydor']
>>> b = ['Petrov','Ivanov','Sydorov']
>>> c = ['23','24','25']
>>> zip(a, b, c)
<zip object at 0x7f9c1d1fbcc8>
console.log(document.getElementById("datetime_from").value)
<input id="datetime_from" type="text">
let normalizer = function (date) {
let res = /(\d\d).(\d\d).(\d\d\d\d)/.exec(date);
if (!res)
return '';
let normalized = `${res[3]}-${res[2]}-${res[1]} 00:00:00+03:00`;
return normalized;
};
console.log(document.getElementById("datetime_from").value)
Тут уже больше от желания зависит, чем от реальной сложности переехать.