Gigasecond

import java.time.LocalDate
import java.time.LocalDateTime
import java.time.Month

class Gigasecond {
static LocalDateTime add(LocalDate moment){
def dayS = moment.atStartOfDay()
return dayS.plusSeconds(1000000000)
}

static LocalDateTime add(LocalDateTime moment){
    return moment.plusSeconds(1000000000)
}

}