Where are you getting '1 day and 3 hours'? It should be '1 day minus 3 hours'.
2-jan-2021 01:00:00
- 1-jan-2021 04:00:00
------------------------
(1 day) - 03:00:00 = 24:00:00 - 03:00:00 = 21:00:00
Where are you getting '1 day and 3 hours'? It should be '1 day minus 3 hours'.
2-jan-2021 01:00:00
- 1-jan-2021 04:00:00
------------------------
(1 day) - 03:00:00 = 24:00:00 - 03:00:00 = 21:00:00