seconds to days python

def show_time(time):
        time = int(time)
        day = time // (24 * 3600)
        time = time % (24 * 3600)
        hour = time // 3600
        time %= 3600
        minutes = time // 60
        time %= 60
        seconds = time
        if day != 0:
                return "%dD %dH %dM %dS" % (day, hour, minutes, seconds)
        elif day == 0 and hour != 0:
                return "%dH %dM %dS" % (hour, minutes, seconds)
        elif day == 0 and hour == 0 and minutes != 0:
                return "%dM %dS" % (minutes, seconds)
        else:
                return "%dS" % (seconds)

print(show_time(12345))