Epoch Converter Functions


Find more epoch conversion routines (in other programming languages) on the homepage.

JavaScript routines

Convert an epoch to human-readable date:

var myDate = new Date( your epoch date *1000);

The example above gives the following output (with epoch date 1):

You can also use getFullYear, getMonth, getDay, etc. See documentation below.

Convert human-readable dates to epoch:

var myDate = new Date("July 1, 1978 02:30:00"); // Your timezone!
var myEpoch = myDate.getTime()/1000.0;

The example above gives the following output:

There are many ways to create dates in Javascript (for example with setFullYear, setMonth, setDay, etc.).
More about the JavaScript Date object.

VBScript / ASP routines

Warning! You need to correct the time zone for these examples to work.

A manual quick fix is to either:

  • look up the offset in wmi and add it to Now()
  • change the "01/01/1970 00:00:00" string, for example for GMT/UTC+1 = "01/01/1970 01:00:00"

The current Unix time:

' check time zone
DateDiff("s", "01/01/1970 00:00:00", Now())

Current Unix time with time zone fix:

function date2epoch(myDate)
Set dateTime = CreateObject("WbemScripting.SWbemDateTime")
dateTime.SetVarDate (myDate)
DateDiff("s", "01/01/1970 00:00:00", CDate(dateTime.GetVarDate (false)))
end function

Wscript.echo date2epoch(Now())

date2epoch converts a VBScript date to an Unix timestamp:

' check time zone if your date is not GMT/UTC
function date2epoch(myDate)
date2epoch = DateDiff("s", "01/01/1970 00:00:00", myDate)
end function

Usage example:


epoch2date converts Unix timestamps back to VBScript dates:

' result is GMT/UTC
function epoch2date(myEpoch)
epoch2date = DateAdd("s", myEpoch, "01/01/1970 00:00:00")
end function

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