Parsing date from ISO 8601

Question

JavaScript

There is a string in ISO format 2005-08-09T18:31:42+03:30
How can I find out from here that the time zone is +03:30?
Is there any library?

Answer 1

And the last six letters do not suit you?

Answer 2

n8v.enteuxis.org/2010/12/parsing-iso-8601-dates-in-javascript/

Answer 3

momentjs.com/docs/#/parsing/

Answer 4

You can use date.js or just a regular expression

var rx = /[+-]\d{2}\:?(?:\d{2})?$/;
"2005-08-09T18:31:42+03:30".match(rx); // ["+03:30"]
"2005-08-09T18:31:42+0330".match(rx); // ["+0330"]
"2005-08-09T18:31:42+03".match(rx); // ["+03"]

// Или более правльный формат таймзоны
var rx = /[+-]\d{2}\:?\d{2}$/; //  не включает короткую запись таймзоны 2005-08-09T18:31:42+03 - такие даты так же не парсят браузеры

Answer 5

developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset

var d = new Date("2005-08-09T18:31:42+03:30")
d.getTimezoneOffset() / 60