TIMEAGO

Use this function to calculate the elapsed time between two moments.

Syntax Argument Description time1 (Required) - shows the starting date and time from which we need to calculate elapsed time. You can input the TIMEAGO function from the above code directly into a cell, or you can use the setFormula method to apply the formula. Usage notes The TIMEAGO function is meant to make it easier to calculate the time passed from a starting point to a current point in time It's usage is mostly common on project management. You can use the TIMEAGO function if you want to show something more relative to a specific time rather than a straightforward date. Benefits This function allows you to have a calculation of the interval passed between 2 moments without having to create complicated custom functions and methods.
window.onload = function () { var spread = new GC.Spread.Sheets.Workbook(document.getElementById('ss')); initSpread(spread); }; function initSpread(spread) { var sheet = spread.getActiveSheet(); //this should be a SpreadJS Function not a custom one function TimeAgoFunction() { this.name = "TIMEAGO"; this.maxArgs = 1; this.minArgs = 1; } TimeAgoFunction.prototype = new GC.Spread.CalcEngine.Functions.Function(); TimeAgoFunction.prototype.evaluate = function(time1) { switch (typeof time1) { case 'number': break; case 'string': time1 = +new Date(time1); break; case 'object': if (time1.constructor === Date) time1 = time1.getTime(); break; default: time1 = +new Date(); } var time2 = +new Date(); if(time1 == time2){ return "just now"; } var isFuture = (time2 < time1); var seconds = ( isFuture ? time1 - time2 : time2 - time1) / 1000; var interval = seconds / 31536000; if (interval >= 1) { var years = Math.floor(interval); return isFuture ? "in " + (years <= 1 ? "one year" : years + " years") : years <= 1 ? "one year ago" : years + " years ago"; } interval = seconds / 2592000; if (interval >= 1) { var months = Math.floor(interval); return isFuture ? "in " + (months <= 1 ? "one month" : months + " months") : months <= 1 ? "one month ago" : months + " months ago"; } interval = seconds / 86400; if (interval >= 1) { var days = Math.floor(interval); return isFuture ? "in " + (days <= 1 ? "tomorrow" : days + " days") : days <= 1 ? "yesterday" : days + " days ago"; } interval = seconds / 3600; if (interval > 1) { var hours = Math.floor(interval); return isFuture ? "in " + (hours <= 1 ? "an hour" : hours + " hours") : hours <= 1 ? "an hour ago" : hours + " hours ago"; } interval = seconds / 60; if (interval > 1) { var minutes = Math.floor(interval); return isFuture ? "in " + (minutes <= 1 ? "a minute" : minutes + " minutes") : minutes <= 1 ? "a minute ago" : minutes + " minutes ago"; } seconds = Math.floor(seconds); return isFuture ? "in " + (seconds <= 1 ? "one second" : seconds + " seconds") : seconds <= 1 ? "one second ago" : seconds + " seconds ago"; }; var timeAgo = new TimeAgoFunction(); sheet.addCustomFunction(timeAgo); // spread.fromJSON(data[0]); sheet.setColumnWidth(0, 200); sheet.setColumnWidth(1, 200); sheet.setColumnWidth(2, 150); sheet.setValue(0,0, 'Date'); sheet.setValue(0,1, 'Formula'); sheet.setValue(0,2, 'Result'); sheet.setFormula(1,0, 'TODAY()'); sheet.setValue(1,1, '=TIMEAGO(A2)'); sheet.setFormula(1,2, 'TIMEAGO(A2)'); sheet.setValue(2,0, new Date('2020-01-20')); sheet.setValue(2,1, '=TIMEAGO(A3)'); sheet.setFormula(2,2, 'TIMEAGO(A3)'); sheet.setValue(3,0, new Date('2021-02-10')); sheet.setValue(3,1, '=TIMEAGO(A4)'); sheet.setFormula(3,2, 'TIMEAGO(A4)'); sheet.setValue(4,0, new Date('2021-11-29 17:12:00')); sheet.setValue(4,1, '=TIMEAGO(A5)'); sheet.setFormula(4,2, 'TIMEAGO(A5)'); }
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