On Planet Plex, there are only 6 hours in a day but the days of the week are the same as ours. Arog the alien lives on Planet Plex. Here is a clock which shows how Arog spends each hour of the day during the week:

between 0 and 1 o'clock - gets up; 1-2 o'clock - school; 2-3 o'clock - lunch time; 3-4 o'clock - play; 4-5 o'clock - dinner and 5-6 o'clock - sleeping.

What time does school start?

Arog starts his dinner at 4 o'clock. What will he be about to do 2 hours later? What was he about to do 5 hours earlier?

Arog gets into bed on Wednesday evening. How long is it until school finishes on Friday?