Prepositions of time

On, in and at are the three most common prepostions of time. These are the rules for using them correctly:

ON

• days of the week: Sunday, Wednesday
• dates : 5th October 2015
• specific dates: Christmas day
• parts of a day: Sunday morning, Wednesday evening

IN

• months: July, December
• the four seasons: (the) spring, summer, autumn, winter
• years: 2014, 2053, 1833
• parts of the day: the morning, the afternoon, the evening

AT

• night
• the weekend
• Christmas, Easter
• times: 5 o'clock, 9:45
• the moment
• present

MORE PRACTICE:

• Grammar sheet
• Exercise 1
• Exercise 2