I for one hope that in 30 years there will be a new 64-bit AmigaOS running on the current CPU platform which will alleviate this problem. 64-bit gets you out something like 290 Billion years from 1970.
However, if nothing happens to move AmigaOS onto new 32-bit hardware even then I guess in 2038, my clock will be wrong. Oh, wait it already is because I had to take the battery off the motherboard to keep it from leaking and killing it.
Let's hope that we see some new hardware in less than 10 years.