Help!

Diana • I love Jesus✝ | Catholic | Aspiring police officer
If I have sex with my partner at 1am should I record that I had sex on that day or the day before? For instance, say my partner and I got busy at 11:50pm on a Saturday and we had sex at 12:12am on Sunday.. Should I record that I had sex on Saturday or Sunday? I hope you do not find this as a stupid question! But please help