That is always confusing to me.
If I am on a bus stop: “This bus” doesn’t make sense, it doesn’t exist yet. Next bus, is the next occurance of event “Bus”.
If it’s Wednesday, the “this Friday” doesn’t really make sense. There doesn’t exist a Friday in Wednesday, that you call this. Next Friday however is quite clear - it’s next occurrence of event “Friday” on the timeline, so it’s the one in two days.
That is always confusing to me. If I am on a bus stop: “This bus” doesn’t make sense, it doesn’t exist yet. Next bus, is the next occurance of event “Bus”.
If it’s Wednesday, the “this Friday” doesn’t really make sense. There doesn’t exist a Friday in Wednesday, that you call this. Next Friday however is quite clear - it’s next occurrence of event “Friday” on the timeline, so it’s the one in two days.