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dff1e71 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 | /**
* Time utilities for handling UTC to local time conversion
*/
/**
* Convert a UTC ISO string to a local time string
* @param {string} utcIsoString - UTC time in ISO format
* @param {Object} options - Formatting options for Intl.DateTimeFormat
* @returns {string} Formatted local time string
*/
export function toLocalTime(utcIsoString, options = {}) {
if (!utcIsoString) return '';
const date = new Date(utcIsoString);
const defaultOptions = {
dateStyle: 'medium',
timeStyle: 'medium'
};
return new Intl.DateTimeFormat(
undefined, // Use browser's locale
{ ...defaultOptions, ...options }
).format(date);
}
/**
* Convert a local Date object to UTC ISO string
* @param {Date} date - Date object in local time
* @returns {string} UTC ISO string
*/
export function toUTCISOString(date) {
if (!date) return '';
return date.toISOString();
}
/**
* Get current time as UTC ISO string
* @returns {string} Current UTC time in ISO format
*/
export function getCurrentUTCISOString() {
return new Date().toISOString();
}
/**
* Format a UTC ISO string for display in local time with configurable format
* @param {string} utcIsoString - UTC time in ISO format
* @param {string} format - Format type ('full', 'date', 'time', 'short')
* @returns {string} Formatted local time string
*/
export function formatDateTime(utcIsoString, format = 'full') {
if (!utcIsoString) return '';
const date = new Date(utcIsoString);
const formatOptions = {
full: { dateStyle: 'medium', timeStyle: 'medium' },
date: { dateStyle: 'medium' },
time: { timeStyle: 'medium' },
short: { dateStyle: 'short', timeStyle: 'short' }
};
return toLocalTime(utcIsoString, formatOptions[format] || formatOptions.full);
}
/**
* Get the user's local timezone name
* @returns {string} Timezone name (e.g., 'America/New_York')
*/
export function getUserTimezone() {
return Intl.DateTimeFormat().resolvedOptions().timeZone;
}
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