So often I want to ask a question to someone, but not disturb them in their off hours. I just send the message anyway, and I expect it to be read whenever they

So often I want to ask a question to someone, but not disturb them in their off hours. I just send the message anyway, and I expect it to be read whenever they log back on to work. I would not expect any message, sent during off-hours, to be received immediately by the recipient.