add timezone config option and use said timezone in social credit

src/cogs/social_credit.py

@@ -316,7 +316,7 @@ class SocialCredit(commands.Cog):
 
         illegal_hours = [5, 6, 7, 8, 9]
 
-        if message.created_at.hour in illegal_hours:
+        if message.created_at.astimezone(self.bot.timezone).hour in illegal_hours:
             await self.social_punishment(message.author.id, 10, "early-bird")
 
     @roll(percent=50)
@@ -331,7 +331,7 @@ class SocialCredit(commands.Cog):
 
         happy_hours = [1, 2, 3, 4]
 
-        if message.created_at.hour in happy_hours:
+        if message.created_at.astimezone(self.bot.timezone).hour in happy_hours:
             await self.social_reward(message.author.id, 10, "night-owl")
 
     async def robort_slur(self, message: discord.Message):

src/config/config.yaml.example

@@ -2,6 +2,9 @@ config_mode: dev
 
 dev_guild: 747542543750660178
 
+# IANA timezone name. Leave empty to use the system's timezone
+timezone: Europe/Oslo
+
 # Bot settings
 bot:
   token:

src/run.py

@@ -2,6 +2,7 @@ import asyncio
 import signal
 from os import listdir
 from time import time
+from zoneinfo import ZoneInfo
 
 import discord
 import psycopg2
@@ -72,6 +73,7 @@ class Bot(commands.Bot):
         self.presence = config["bot"].get("presence", {})
         self.emoji = config.get("emoji", {})
         self.misc = config.get("misc", {})
+        self.timezone = ZoneInfo(tz) if (tz := config.get("timezone")) else None  # None means the system timezone
 
     async def setup_hook(self):
         # Docker stops the container with SIGTERM. Close gracefully so cogs can save their caches