[nalgeon]

I appreciate your comments, and thank you for trying out the extension.

This query returns -1 (minus one, not one), which seems correct to me. The first date is before the second:

    select time_compare(
      time_date(1927, 12, 31, 23, 58, 08, 0, 28800000),
      time_date(1927, 12, 31, 23, 58, 09, 0, 28800000)
    );

    -1