import time


def is_trade_time():
    relative_timestamp = time.time() % (24 * 60 * 60) + 8 * 60 * 60
    start1 = 60 * 60 * 9 + 24 * 60
    end1 = 60 * 60 * 11 + 31 * 60
    start2 = 60 * 60 * 12 + 58 * 60
    end2 = 60 * 60 * 15 + 1 * 60
    if start1 < relative_timestamp < end1 or start2 < relative_timestamp < end2:
        return True
    else:
        return False