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a070805 | 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 | /**
* Parses a date string as UTC if it doesn't have a timezone indicator.
* This fixes the issue where ISO strings without timezone info are interpreted as local time.
* @param dateString ISO 8601 date string
* @returns Date object parsed as UTC
*
* @example
* parseDateAsUTC("2025-12-01T11:53:37.273886"); // Parsed as UTC
* parseDateAsUTC("2025-12-01T11:53:37.273886Z"); // Already has timezone, parsed correctly
* parseDateAsUTC("2025-12-01T11:53:37+00:00"); // Already has timezone, parsed correctly
*/
const parseDateAsUTC = (dateString: string): Date => {
// Check if the string already has a timezone indicator
// Look for 'Z' (UTC), '+' (positive offset), or '-' after the time part (negative offset)
const hasTimezone =
dateString.includes("Z") || dateString.match(/[+-]\d{2}:\d{2}$/) !== null;
if (hasTimezone) {
// Already has timezone info, parse normally
return new Date(dateString);
}
// No timezone indicator - append 'Z' to force UTC parsing
return new Date(`${dateString}Z`);
};
/**
* Formats a date into a compact string representing the time delta between the given date and the current date.
* @param date The date to format (Date object or ISO 8601 string)
* @returns A compact string representing the time delta between the given date and the current date
*
* @example
* // now is 2024-01-01T00:00:00Z
* formatTimeDelta(new Date("2023-12-31T23:59:59Z")); // "1s"
* formatTimeDelta("2023-12-31T23:59:59Z"); // "1s"
* formatTimeDelta("2025-12-01T11:53:37.273886"); // Parsed as UTC automatically
*/
export const formatTimeDelta = (date: Date | string) => {
// Parse string dates as UTC if needed, or use Date object directly
const dateObj = typeof date === "string" ? parseDateAsUTC(date) : date;
const now = new Date();
const delta = now.getTime() - dateObj.getTime();
const seconds = Math.floor(delta / 1000);
const minutes = Math.floor(seconds / 60);
const hours = Math.floor(minutes / 60);
const days = Math.floor(hours / 24);
const months = Math.floor(days / 30);
const years = Math.floor(months / 12);
if (seconds < 60) return `${seconds}s`;
if (minutes < 60) return `${minutes}m`;
if (hours < 24) return `${hours}h`;
if (days < 30) return `${days}d`;
if (months < 12) return `${months}mo`;
return `${years}y`;
};
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