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I have the following javascript code that convert date (string) to the Date Serial Number used in Microsoft Excel: function JSDateToExcelDate(inDate) {. var returnDateTime = 25569.0 + ((inDate.getTime() - (inDate.getTimezoneOffset() * 60 * 1000)) / (1000 * 60 * 60 * 24)); return returnDateTime.toString().substr(0,5);
Using moment package, you can easily convert a date string of UTC to a new Date object: const moment = require('moment'); let b = new Date(moment.utc('2014-02-20 00:00:00.000000')); let utc = b.toUTCString(); b.getTime();
24 Αυγ 2023 · Date.UTC() returns a time value as a number instead of creating a Date object. When passed a single number, Date.UTC() interprets it as a year instead of a timestamp. If a parameter is outside of the expected range, the UTC() method updates the other parameters to accommodate the value.
const cultureInfo = workbook.getApplication().getCultureInfo(); const systemDateTimeFormat = cultureInfo.getDatetimeFormat(); const separator = systemDateTimeFormat.getTimeSeparator(); // Get the current time. const currentTime = new Date(Date.now()); // Write the date using the system's separator character.
24 Μαΐ 2012 · var date = new Date((excelDateValue - (25567 + 2)) * 86400 * 1000); var localTime = new Date(date.getTime() + (new Date()).getTimezoneOffset() * 60000); return localTime;
27 Ιουν 2019 · What this is doing is getting the date portion of the input using LEFT(A1,10) and converting it into DATEVALUE and getting the time portion using MID(A1,12,8) and converting it into TIMEVALUE. Add them together and you get date and time. You can use Excel custom format and use the following:
Use the Moment-MSDate plug-in to work with dates. The Moment JavaScript library provides a convenient way to use dates and timestamps. The Moment-MSDate plug-in converts the format of moments into one preferable for Excel. This is the same format the NOW function returns.
