Why does the bot go offline?

Question

Python

from discord import FFmpegPCMAudio
from discord.ext import commands
import datetime
import discord
import time

bot = commands.Bot(command_prefix="!")

@bot.command()
async def BigBenStart(ctx):
  hour = datetime.datetime.now().hour
        channel = ctx.author.voice.channel
  while True:
      if hour != datetime.datetime.now().hour:
      	voice = await channel.connect()
      	source = FFmpegPCMAudio('Big Ben Audio.mp3')
      	player = voice.play(source)
      	time.sleep(37)
      	await ctx.voice_client.disconnect()
      	hour = datetime.datetime.now().hour

bot.run('ТУТ ТОКЕН')

Answer 1

time.sleep(37)
No way. Read how asynchronous programs work.
Roughly speaking, while your handler is executing synchronous code (anything without await), the rest of the program is idle.
So while the bot is sleeping, it does not react to anything at all.
Replace with await asyncio.sleep(37).