Preposition In, On, At

A preposition is a word or groups of words used before a noun or a pronoun to show place, position, time or method. A preposition can have many usage.

Here are some preposition and some of their usages :

• Preposition In: use 'in' with periods of times and places

Examples:
- Month : in March
- Season : in Winter
- Country : in Indonesia
- City or town names : in Palangkaraya
- Times of the day : in the morning

• Preposition On: use 'on' with specific days.

Examples:
On Saturday, on New Year's Day, on March 20, on the weekend, etc.

• Preposition At: use 'at' with specific time and place

Examples:
At school, at 7 O'clock, at night.