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/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")