Timeslot.java

public class Timeslot implements Parcelable {

    public static final int MONDAY = 1,
            TUESDAY = 2,
            WEDNESDAY = 3,
            THURSDAY = 4,
            FRIDAY = 5,
            SATURDAY = 6,
            SUNDAY = 7;

    public int dayOfWeek, startHour, startMinute, endHour, endMinute;
    public BranchOffice branchOffice;

    public Timeslot(int dayOfWeek, int startHour, int startMinute, int endHour, int endMinute, BranchOffice branchOffice) {
        this.dayOfWeek = dayOfWeek;
        this.startHour = startHour;
        this.startMinute = startMinute;
        this.endHour = endHour;
        this.endMinute = endMinute;
        this.branchOffice = branchOffice;
    }

    public Timeslot() {
    }


    public Timeslot(Parcel p){

        Bundle data = p.readBundle(Timeslot.class.getClassLoader());
        data.setClassLoader(Timeslot.class.getClassLoader());

        this.dayOfWeek = data.getInt("dayOfWeek");
        this.startHour = data.getInt("startHour");
        this.startMinute = data.getInt("startMinute");
        this.endHour = data.getInt("endHour");
        this.endMinute = data.getInt("endMinute");
        this.branchOffice = BranchOffice.get(data.getInt("branchOffice"));
    }

    public Timeslot(int firstHour, int duration) {
        startHour = 7;
        startMinute = 30 + (firstHour - 1) * 45 + ((firstHour % 2 != 0) ? 15 : 0) * (firstHour / 2) + ((firstHour % 2 == 0) ? (firstHour / 4) * 15 : 0);
        while (startMinute >= 60) {
            startHour++;
            startMinute -= 60;
        }
        endHour = startHour;
        endMinute = startMinute + duration * 45;
        while (endMinute >= 60) {
            endHour++;
            endMinute -= 60;
        }
    }

    public Timeslot(int dayOfWeek, int startHour, int startMinute, int endHour, int endMinute) {
        this.dayOfWeek = dayOfWeek;
        this.startHour = startHour;
        this.startMinute = startMinute;
        this.endHour = endHour;
        this.endMinute = endMinute;
    }

    public static String getNameOfDay(int day) {
        switch (day) {
            case 1:
                return App.getInstance().getString(R.string.monday);
            case 2:
                return App.getInstance().getString(R.string.tuesday);
            case 3:
                return App.getInstance().getString(R.string.wednesday);
            case 4:
                return App.getInstance().getString(R.string.thursday);
            case 5:
                return App.getInstance().getString(R.string.friday);
        }
        return null;
    }

    public static Timeslot getNow() {
//        if (true)
//            return new Timeslot(4, 13, 01, 13, 01);
        int hour = Calendar.getInstance(Locale.UK).get(Calendar.HOUR_OF_DAY);
        int minute = Calendar.getInstance(Locale.UK).get(Calendar.MINUTE);
        return new Timeslot(Calendar.getInstance(Locale.UK).get(Calendar.DAY_OF_WEEK) - 1, hour, minute, hour, minute, null);
    }

    public boolean isOpenNow() {
        Timeslot now = getNow();

        // příklad
//         now = new Timeslot(2, 14, 0, 14, 0);

        return dayOfWeek == now.dayOfWeek &&
                ((startHour == now.startHour && startMinute <= now.startMinute) ||
                        (startHour < now.startHour)) &&
                ((endHour == now.endHour && endMinute > now.endMinute) ||
                        (endHour > now.endHour));
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || !(o instanceof Timeslot)) return false;

        Timeslot timeslot = (Timeslot) o;

        if (dayOfWeek != timeslot.dayOfWeek) return false;
        if (endHour != timeslot.endHour) return false;
        if (endMinute != timeslot.endMinute) return false;
        if (startHour != timeslot.startHour) return false;
        if (startMinute != timeslot.startMinute) return false;

        return true;
    }

    @Override
    public int hashCode() {
        int result = dayOfWeek;
        result = 31 * result + startHour;
        result = 31 * result + startMinute;
        result = 31 * result + endHour;
        result = 31 * result + endMinute;
        return result;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {

        Bundle data = new Bundle(Timeslot.class.getClassLoader());

        data.putInt("dayOfWeek", dayOfWeek);
        data.putInt("startHour", startHour);
        data.putInt("startMinute", startMinute);
        data.putInt("endHour", endHour);
        data.putInt("endMinute", endMinute);
        data.putInt("branchOffice", this.branchOffice != null ? this.branchOffice.ID : BranchOffice.UNKNOWN.ID);


        dest.writeBundle(data);
    }

    public static final Creator<Timeslot> CREATOR = new Creator<Timeslot>() {
        @Override
        public Timeslot createFromParcel(Parcel parcel) {
            return new Timeslot(parcel);
        }

        @Override
        public Timeslot[] newArray(int size) {
            return new Timeslot[size];
        }
    };
}

thank for help