selectValue is not a function

[chubz]

Hi, I've got a problem. I have a defined value I would like displayed when user has already selected his timezone and saved the data.
I've tried:
var ttz = moment.tz("{{form.personal_timezone.value}}")
var tz = $('#id_personal_timezone').timezones()
tz.selectValue(ttz.format("Z"))

Uncaught TypeError: tz.selectValue is not a function

but get an error about selectValue not being a function. How would I go about fixing this?

[JudgeGreg]

Did you find a solution for this? @chubz @jgallen23

[benjamincacasaca]

    var tz = '-04:00';

    $('.timezoneEdit').timezones();
    var match = $('.timezoneEdit').find('option[data-offset="'+tz+'"]');
    if (match.length){
        $('.timezoneEdit').val(match.val());
    }

THIS WORKS FOR ME