Block time logged value overflow

[HDauven]

Describe the bug At times, certain blocks can have the given block time wrap around and return extremely high values.

Examples in my logs: block: 2312 Time: 18446744073709551615 block: 3719 Time: 18446744073709551615 block: 4201 Time: 18446744073709551604

To Reproduce Hard to reproduce, can be found in the logs by looking for blocks with extremely high block times.

Expected behaviour Needs further investigation, but there seems to be something wrong with the time when the timestamp is created and the value that is subtracted.