rallly/packages/backend/utils/date.ts
2023-07-05 14:46:30 +01:00

17 lines
645 B
TypeScript

import dayjs from "dayjs";
import localizedFormat from "dayjs/plugin/localizedFormat";
import timezone from "dayjs/plugin/timezone";
import spacetime from "spacetime";
import soft from "timezone-soft";
dayjs.extend(localizedFormat);
dayjs.extend(timezone);
export const getTimeZoneAbbreviation = (date: Date, timeZone: string) => {
const timeZoneDisplayFormat = soft(timeZone)[0];
const spaceTimeDate = spacetime(date, timeZone);
const standardAbbrev = timeZoneDisplayFormat.standard.abbr;
const dstAbbrev = timeZoneDisplayFormat.daylight?.abbr;
const abbrev = spaceTimeDate.isDST() ? dstAbbrev : standardAbbrev;
return abbrev;
};