Improve and add more usage of discord timestamps (#5241)

* Improve and add more usage of discord timestamps

* How did that whitespace get there?

redbot/cogs/general/general.py

@@ -254,7 +254,7 @@ class General(commands.Cog):
         Default to False.
         """
         guild = ctx.guild
-        created_at = _("Created on <t:{0}:D>. That's <t:{0}:R>!").format(
+        created_at = _("Created on <t:{0}>. That's <t:{0}:R>!").format(
             int(guild.created_at.replace(tzinfo=datetime.timezone.utc).timestamp()),
         )
         online = humanize_number(

redbot/cogs/mod/kickban.py

@@ -643,7 +643,7 @@ class KickBanMixin(MixinMeta):
         with contextlib.suppress(discord.HTTPException):
             # We don't want blocked DMs preventing us from banning
             msg = _("You have been temporarily banned from {server_name} until {date}.").format(
-                server_name=guild.name, date=unban_time.strftime("%m-%d-%Y %H:%M:%S")
+                server_name=guild.name, date=f"<t:{int(unban_time.timestamp())}>"
             )
             if guild_data["dm_on_kickban"] and reason:
                 msg += _("\n\n**Reason:** {reason}").format(reason=reason)

redbot/cogs/mod/names.py

@@ -205,9 +205,9 @@ class ModInfo(MixinMeta):
             + 1
         )
 
-        created_on = "<t:{0}:D>\n(<t:{0}:R>)".format(user_created)
+        created_on = "<t:{0}>\n(<t:{0}:R>)".format(user_created)
         if joined_at is not None:
-            joined_on = "<t:{0}:D>\n(<t:{0}:R>)".format(int(joined_at.timestamp()))
+            joined_on = "<t:{0}>\n(<t:{0}:R>)".format(int(joined_at.timestamp()))
         else:
             joined_on = _("Unknown")
 

redbot/cogs/mutes/mutes.py

@@ -527,7 +527,7 @@ class Mutes(VoiceMutes, commands.Cog, metaclass=CompositeMetaClass):
         if duration:
             duration_str = humanize_timedelta(timedelta=duration)
             until = datetime.now(timezone.utc) + duration
-            until_str = until.strftime("%Y-%m-%d %H:%M:%S UTC")
+            until_str = f"<t:{int(until.timestamp())}>"
 
         if moderator is None:
             moderator_str = _("Unknown")