Get time remaining about googleauth HOT 1 OPEN

It looks like this should be as simple as:

120 - (Math.round((new GregorianCalendar()).getTimeInMillis() / 1000) % 120)

Where 120 is the second you make it valid:

.setTimeStepSizeInMillis(TimeUnit.SECONDS.toMillis(120))

Of course your window size will probably make it valid for LONGER but for the purposes of UI this gives me an accurate countdown. In the end since this is for a web app I'll probably just do the calculation in javascript on the front end:

console.log(120 - Math.round(new Date() / 1000) % 120)

Yes, the web front end is acting like a TOTP generator for another device, I know it sounds weird but trust me, it's what I want for the project I'm working on.

from googleauth.