On Friday, for lunch, etc
A Introduction
Henry: Don't forget we're meeting on Friday for lunch.
Sarah: Of course I haven't forgotten. But remind me where we're eating.
Henry: The Riverside Restaurant. You've been there before. Claire was with us. It was the Friday before she went to Australia. We had a good lunch.
Phrases of time are usually without a/an or the.
We're meeting on Friday for lunch.
But we use a/an or the if there is a phrase or clause after Friday, lunch, etc.
It was the Friday before she went to Australia.
We normally use a/an or the if there is an adjective.
We had a good lunch.
B Years, seasons and months
I was born in 1974. That was the year I was born.
We play cricket in summer/in the summer.
Winter always depresses me. It was the winter of 1995 when things started to go wrong for the company.
I start the course in September.
C Special times
We go away at Christmas. We had a wonderful Christmas.
Easter is early this year. I started work here the Easter before last.
I'll be home for Thanksgiving.
D Days of the week
Yes, Thursday will be convenient. The storm was on the Thursday of that week.
I'll see you on Tuesday evening. We went surfing at the weekend.
E Parts of the day and night
I can't sleep at night. It's warmer in/during the day.
I prefer to travel by day/by night. Someone got up in/during the night.
I must get to bed before midnight. We're meeting in the morning.
We were on the beach at sunset. They arrived at the hotel in the evening.
I hope to get there before dark. It was a beautiful sunset.
I couldn't see in the dark.
F Meals
I'll see you at breakfast. We had a quick breakfast.
We have supper at about eight. The supper David cooked was excellent.
I'm going out after lunch. The meal was very nice.
We'll need an evening meal.