Validate date/time range based on logged in user's timezone

[Ankur Bawiskar]

Consider a requirement to validate if the user selects a time in the date/time variable between 11 AM and 4 PM.

You can use the onChange catalog client script with the following logic. It handles for every timezone.

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }
    g_form.hideFieldMsg('my_datetime');
    var myDate = new Date(getDateFromFormat(newValue, g_user_date_time_format));
    var hourValue = myDate.getHours();
    if (hourValue > 11 && hourValue < 16) {
        // valid
    } else {
        g_form.showFieldMsg('my_datetime', 'Time should be between 11am to 4pm', 'error');
    }

}

This checks the time is between 11am to 4pm based on logged in user timezone.

Output: I selected GMT & then selected Los Angeles time zone and it gave me the error based on requirement.

[Appu]

@Ankur Bawiskar 
I hava a requirement where date/time variable when selected should be adjusted according to UTC time zone always.

Please provide a solution
Thanks in advance