inverted pyramid preposition

Prepositions of Time

IN- The pyramid’s TOP (wider), which is BIGGER and more GENERAL:

• Description: Bigger periods of time: Centuries, Decades, Years, Months
• Examples: in the 20th century, in the 1980’s, in March, in the third week of April, in the future
• Exceptions: in the morning, in the evening, in the afternoon

ON- The pyramid’s MIDDLE part, which is SMALLER and MORE SPECIFIC:

• Description: Days, or periods of time shorter than three days
• Examples: on my birthday, on Saturday, on the weekend (United States), on June 8th
• Exceptions: on my lunch break, on time

AT- The pyramid’s BOTTOM (pointed), the SMALLEST, and the MOST SPECIFIC:

• Description: Specific times or small time periods.
• Examples: at 9:00 PM, at lunch, at dinner, at the start of the party, at sunrise, at the start of the movie, at the moment
• Exceptions: at night, at the weekend (England) 

Prepositions of Location

IN - The TOP (wider), which is BIGGER and more GENERAL:

• Description: In larger areas (countries, states, cities, neighborhoods)
• Examples: in the United States, in Miami, in my neighborhood
• Exceptions: in downtown (“I work in downtown”)

ON - The MIDDLE, which is SMALLER and MORE SPECIFIC:

• Description: a longer area, street, beach, river
• Examples: on Broadway Street, on the beach, on my street 

AT – The pyramid’s BOTTOM (pointed), the SMALLEST, and the MOST SPECIFIC:

• Description: the address or specific location, specific points.
• Examples: at 345 broadway street, at the store, at my house

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