Pretty timestamps are confusing if they're too old

[Torgen]

Pretty timestamps are great if the thing happened the same day, but if the hunt spills into Sunday or Monday, it's not clear which 12PM something happened. We should add a day of the week if it's more than 24h old. (We probably don't need something for more than a week old because of the nature of the hunt, though I run into that case a lot in testing.)