231 seconds (%01111111 11111111 11111111 11111111) from January 1, 1970 is what date?
By my estimate that’s about 136 years. So subtract the 39 that have passed since 1970 and we have about 97 years to go.
Well, if’n I did it right, January 19, 2038 at 3:21 AM. Think I got all the leap years and the recent leap second in there.