root@ubuntu-512mb-sgp1-01: ~/site/telegram master ⚡ # cat sleep.php
<?php
date_default_timezone_set('Asia/Taipei');
$date = date('H i');
$date = explode(' ', $date);
$time = ($date[0] * 60) + $date[1];

if ($time < 1*60 + 30) {
        send(10);
} elseif ($time < 2*60 + 30) {
        send(8);
} elseif ($time < 3*60) {
        send(6);
} elseif ($time < 3*60 + 30) {
        send(5);                                            } elseif ($time < 5*60) {                                           send(3);
}                                                           
function send($level) {                                             if ($level == 1 || rand(1, $level) == 1)
                sendMsg(Array(
                        'bot' => BOT,
                        'chat_id' => ChatID,
                        'reply_to_message_id' => MsgID,
                        'text' => 'You must go *sleep* *now*!',
                        'parse_mode' => 'Markdown',
                ));
}