5.90 'at' for specific times

If you want to say when something happens, you use 'at' with clock times, periods of the year, and periods of the day except for 'morning', 'evening', 'afternoon', and 'daytime'.

• Our train went at 2.25.
• It's on Radio Four at ten to eight tomorrow evening.
• We were in Dunfermline at twenty five past.
• You should go to church at Easter and Christmas.
• I went down and fetched her back at the weekend.
• On Tuesday evening, just at dusk, Brody had received an anonymous phone call.
• He regarded it as his duty to come and read to me at bedtime.
• At night we kept them shut up in a wire enclosure.
• Let the fire burn out now. Who would see smoke at night-time anyway?

You can also use 'at' with 'time' and similar words such as 'moment' and 'juncture' and with units of clock time such as 'hour' and 'minute'.

• General de Gaulle duly attended the military ceremony at the appointed time.
• It was at this juncture that his luck temporarily deserted him.
• If I could have done it at that minute I would have killed him.
• There were no lights at this hour, and roads, bungalows and gardens lay quiet.