@telerik/kendo-intl/dist/es/dates/time-utils.js

A package exporting functions for date and number parsing and formatting

export function convertTimeZone(date, fromOffset, toOffset) {
    var fromLocalOffset = date.getTimezoneOffset();

    var offsetDate = new Date(date.getTime() + (fromOffset - toOffset) * 60000);

    var toLocalOffset = offsetDate.getTimezoneOffset();

    return new Date(offsetDate.getTime() + (toLocalOffset - fromLocalOffset) * 60000);
}

export function adjustDST(date, hours) {
    if (!hours && date.getHours() === 23) {
        date.setHours(date.getHours() + 2);
    }
}