Thanks for the reply,

So according to my example :

Counts Time

10 05:54

309 06:02

...

..

25 13:58

91 14:02

The point is that you don't want just records before 06:02 am, you want to include it in your query because you want to find the exact number of counts

YOU WOULD EXPECT to have at 06:00! So my point is not just to include 05:54 and its counts but to use it for calculation in order to estimate the number of counts at 06:00 precisely.

Does it make sense?

Apologies for not explaining