Get today's pattern from telegram group
Notify before minutes.
Example pattern: 22:24, 23:34, 00:24, 01:34, 02:24, 03:34, 04:24, 05:34, 06:24, 07:34, 08:24, 09:34, 10:24, 11:34, 12:24, 13:34, 14:24, 15:34, 16:24, 17:34, 18:24, 19:34, 20:24, 21:34