Before this fix, the parsing code gave an error like this
parsing "2022-08-02 07:00:00" as fs.Time failed: expected newline
This was due to the Scan call failing to read all the data.
This patch fixes that, and redoes the tests
Similar to fs.Duration but parses into a timestamp instead
Supports parsing from:
* Any of the date formats in parseTimeDates
* A time.Duration offset from now
* parseDurationSuffixes offset from now