When we use "AT" "ON" "IN"?
Prepositions of Time: AT
English speakers use the preposition AT for the most specific times.
1. Hours:
At 7 am
At 12 o’clock
At 5 pm
2. Parts of the day:
At night
At noon/ midday
At midnight
3. Holidays without “day”
At Easter
At Christmas
At New Year
4. Time
At present
At breakfast
At the moment
Prepositions of Time: ON
Moving to more specific periods of time, the preposition ON is used.
1. Days:
On Monday
On Thursday
On Sunday
2. Dates:
On the 10th
On the first day
On the last day
3. Holidays with “day”
On New Year’s day
On Christmas day
On Easter day
4. Specific days:
On my birthday
On holiday
On my wedding day
5. Day + Part of day
On Sunday morning(s)
On Friday afternoon(s)
On Monday evening(s)
Prepositions of Time: IN
Native speakers use the preposition IN to refer to a general, longer period of time.
1. Parts of the day:
In the morning
In the afternoon
In the evening
2. Months
In January
In February
In December
3. Seasons:
in (the) spring
In (the) summer
In (the) fall/autumn
In (the) winter
4. Years:
In 1923
In 1654
5. Decades:
In the 1960s
