Can you make a if statement with time and date as

Is it possible to make an If and AND statement that will show a specific day if the time and date follows? Like for example 2/13/2021(3 am) up to 2/14/2021 (3:00 am) be counted as 2/13/2021? And it will automatically the same thing will happened with 2/14/2021 3:01 am and so on?

I was think of using if and now() but I have no idea how to code it and if today ends will the dates that are currently in the cell changes too?

Thank you in advance https://docs.google.com/spreadsheets/d/1R7dnbN7UAtZ-uC6Knwp6YKAqW-K3EW34jORBXbemg7Y/edit?usp=drivesdk