import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneOffset;
import java.time.temporal.ChronoUnit;
import java.util.concurrent.TimeUnit;
 
class Main {
    public static void main(String[] args) {
        Instant now = Instant.now();
        var now1 = TimeUnit.SECONDS.convert(now.toEpochMilli(), TimeUnit.MILLISECONDS) - 60;
        var now2 = TimeUnit.SECONDS.convert(now.minusSeconds(60).toEpochMilli(), TimeUnit.MILLISECONDS);
        var now3 = LocalDateTime.now(ZoneOffset.UTC).minusSeconds(60).toEpochSecond(ZoneOffset.UTC);
        var now4 = System.currentTimeMillis() / 1000 - 60;
        System.out.println(now1);
        System.out.println(now2);
        System.out.println(now3);
        System.out.println(now4);
    }
}

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