In this case, it is the overflow as 01111111...11111111+1 in binary becomes 10000000...00000000. (Yes, negative numbers in signed integer format are represented as starting with 1)
But yes, some programs erroneously fall back to 0 in case of a null value, which corresponds to 1970-01-01. That’s why so many geotags were recorded for Null Island.
In this case, it is the overflow as
01111111...11111111+1in binary becomes10000000...00000000. (Yes, negative numbers in signed integer format are represented as starting with 1)But yes, some programs erroneously fall back to
0in case of anullvalue, which corresponds to 1970-01-01. That’s why so many geotags were recorded for Null Island.For those wanting to know why, its called Two’s complement