Asking for Time

Question
Excuse me. What time is it?
Could you tell me the time, please?
Do you have a time?

answer
(It's) seven o'clock.
Six twenty/Twenty past six
Five to four/Three fifty-five
A quarter past eight/Eight fifteen
Half past ten/Ten thirty
A quarter to ten/Nine forty-five
Noon
Midnight
In the morning
In the afternoon
In the evening
At night