Neither of these is a normal question. I don't think that I've heard anyone say 'How's your day?', and I am pretty certain that I have never heard anyone say 'How's your time?'
During the day, you might say, for example, How's your day going? in the present continuous.
You might answer like this: "It's going OK. I'm quite busy, though."
At the end of the day, you might say How was your day? in the past simple.
You might say "It was boring. I just stayed home and studied."
I'm not sure what you mean by 'How's your time?'. Can you give some more context, please?