Why does datetime error occur?

Question

Python

I have two points

now = datetime.datetime.now()
then = datetime.datetime(2021, 6, 19, 20, 0 , 0)

I find the difference between them in minutes

delta = now - then
minutes = (delta.seconds // 60)

After which I check the last use of the daily prize
raznica = minutes - ltm
But then I get an error

print(str(minutes)+" - "+str(ltm)+" = "+str(raznica))

24 - 1 = 23

She counts not from the last date, but from today. Why?

Answer 1

Long story short, I fixed it.
Delta.total_seconds() should be used instead of delta.seconds