The ATONIN Time Pyramid
The ATONIN Time Pyramid can help people remember which preposition – at, on or in – to use with hours, days, months, years, etc.
An easy way to remember which preposition to use with hours, days, weeks, months, years, decades, ages.
Do you have a difficult time remembering which preposition to use with hours, days, months, years, etc?
Imagine a pyramid divided horizontally into 3 groups.

At the top of the pyramid you have “AT” and this is used for the smallest in time: hours
- I’ll meet you AT 7 p.m.
In the middle of the pyramid you have “ON” and this is used for bigger time: days
- See you ON Saturday.
At the bottom you have “IN” and this is used for everything else that is bigger than hours or days
- I was born IN 1964.
- He takes holidays IN January.
- They played great music IN the 80s.
2 Comments
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Marcelo Montecinos says:
Into refers to going inside something. It could be into a subject, store, etc. Onto refers to another subject.
I will not go into that subject right now.
Let’s move onto another subject.
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Vinay kumar says:
what is the difference between into and onto?