-- bin_at()
4.5
-12:0:0
2017-05-14 12:00:00.000000000
2017-05-14 00:00:00.000000000
2018-02-25 15:14:00.000000000	5
2018-02-24 15:14:00.000000000	3
2018-02-23 15:14:00.000000000	4
-- bin()
4
1970-05-11 00:00:00.000000000
336:0:0
1970-05-11 13:45:07.345000000
1970-05-11 13:45:07.345623000
2022-09-26 10:13:23.987232000
1970-05-11 13:45:07.456336000