How to get current UTC timestamp in seconds

Question

How to get current time-stamp in UTC/GMT and then How to convert this time-stamp into seconds ? Itry this but its thrw exception

    SimpleDateFormat sdfu  = new SimpleDateFormat("yyyy-MM-dd kk:mm");
    Date udate = sdfu.parse(dateAndTimeUTC);
    long timeInMillisSinceEpoch123 = udate.getTime(); 
    long durationinSeconds2 = timeInMillisSinceEpoch123 / 1000;
    System.out.println("Time in Seconds UTC: " + durationinSeconds2);

Is there any better way to convert UTC/GMT time-stamp into seconds?

Answer 1

With Java 8+, you can use:

Instant.now().getEpochSecond()

Answer 2

get current seconds system long timestamp = System.currentTimeMillis() / 1000;