Fully agree. The time resolution I would be interested in are nanoseconds. Using 64bit signed integer values with nanoseconds as units I could cover a +/- 292 y

Fully agree. The time resolution I would be interested in are nanoseconds. Using 64bit signed integer values with nanoseconds as units I could cover a +/- 292 years which is far enough. I could then afford to keep the unix time_t epoch.