Untitled

    private void setDateNowHelper(){
        long currentTimeMilliseconds = System.currentTimeMillis();
        long currentTimeSeconds = 0;
        long currentTimeMinutes = 0;
        int currentTimeHours = 0;
        int currentTimeDays = 0;
        int currentTimeMonths = 0;
        int currentTimeYears = 0;
        calculateTimeNow(currentTimeMilliseconds, currentTimeSeconds, currentTimeMinutes, currentTimeHours, currentTimeDays, currentTimeMonths, currentTimeYears);
        this.day = currentTimeDays;
        this.month = currentTimeMonths;
        this.year = currentTimeYears;
    }

    private void calculateTimeNow(long milliseconds, long seconds, long minutes, int hours, int days, int months, int years){
        while (milliseconds >= 1000) {

            milliseconds -= 1000;
            seconds++;

            if (seconds >= 60) {
                seconds -= 60;
                minutes++;
            }
            if (minutes >= 60) {
                minutes -= 60;
                hours++;
            }
            if (hours >= 24) {
                hours -= 24;
                days++;
            }
            calculateMonthNow(days, months, years);
            calculateYearNow(months, years);
        }
    }
    private void calculateMonthNow(int days, int months, int years){
        if (isLeapYear(years) && months == 2 && days >= 29){
            days -= 29;
            months++;
        }

        if (days >= 31){
            switch (months) {
                case 1, 3, 5, 7, 8, 10, 12 -> {
                    days -= 31;
                    months++;
                }
            }
        }

        if (days >= 30){
            switch (months) {
                case 4, 6, 9, 11 -> {
                    days -= 30;
                    months++;
                }
            }
        }

        if (days >= 28 && months == 2){
            days -= 28;
            months++;
        }

    }


    private void calculateYearNow(int months, int years){
        if (months > 12){
            months -= 12;
            years++;
        }
    }

    public boolean isLeapYear(int year){
    if (year % 4 == 0 && year % 100 != 0){
        return true;
    }
    else if (year % 100 == 0 && year % 400 == 0){
        return true;
    }
    return false;
    }