Thanks Agraham.
Interesting reading: year 2038-problem:
Year 2038 problem - Wikipedia, the free encyclopedia
Doesn't seem to be an issue but part of my job is to deal with Trademarks which are being renewed every 10 years. I guess if I wrote a Trademark-system, running on an Android-device, I should
not schedule future deadlines/renewals falling due after February 2038.