import time
from datetime import datetime
time = datetime(datetime.now().year, datetime.now().month, datetime.now().day, datetime.now().hour, datetime.now().minute)
if time.hour == <час> and time.minute == <минут>:
await bot.send_message(message.from_user.id, f'Время: {time.hour}:{time.minute}')
else:
await bot.send_message(message.from_user.id, time)