29 lines
740 B
TypeScript
29 lines
740 B
TypeScript
import { getJsDateFromExcel } from "excel-date-to-js";
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export const excelDateStuff = (serial: number, time?: any) => {
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if (typeof serial !== "number" || serial <= 0) {
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return "invalid Date";
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}
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// Default time to 8:00 AM if not provided
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if (!time) {
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time = 800;
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}
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// Get base date from Excel serial (this gives you UTC midnight)
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const date = getJsDateFromExcel(serial);
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const localOffset = new Date().getTimezoneOffset() / 60;
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const hours = Math.floor(time / 100);
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const minutes = time % 100;
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// Set the time in UTC
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date.setUTCHours(hours + localOffset);
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date.setUTCMinutes(minutes);
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date.setUTCSeconds(0);
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date.setUTCMilliseconds(0);
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//console.log(date.toISOString(), serial, time);
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return date.toISOString();
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};
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