What time is it? It's half past ten. (10.30) It's late.
It's time to go home.
What day is it? It's 16 March. It's Thursday today. It's my birthday today.
How far is it from London to Bristol? It's a long way from here to the airport.
We can walk home. It isn't far.* It's 20 miles from our village to the nearest town.
* Use far in questions (is it far?) and negatives
(it isn't far). Use a long way in positive sentences (it's a long way)
It's raining. It isn't raining. Is it snowing?
It's warm/hot/cold/fine/cloudy/windy/sunny/foggy/dark etc.
It's a nice day today.
Compare it and there:
It rains a lot in winter. (rains is a verb) butThere is a lot of rain in winter. (rain is a noun)
It was very windy. (windy is an adjective) butThere was a strong wind yesterday. (wind is a noun)