It's "on Saturday." For days and dates, we use the preposition "on". In casual situations, many natives omit the preposition before the day of the week.
We say "on Saturday". For days and dates, use the preposition "on" (not "in").
We're hosting a dinner party on Saturday.
We're hosting a dinner party in Saturday.
To introduce the plural form (Saturdays), use the same preposition.
On Saturdays, I always go grocery shopping with my mother.
In informal situations or casual conversations, some natives drop the preposition "on". This is more common in American English than in British English.
I'll call you Saturday night.
I'll call you on Saturday night.
To refer to one of the Saturdays in the year, add the article "a".
My brother's birthday is on a Saturday this year.
Instead of "on", you can use one of the following adjectives and determiners:
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Next:
Nancy has a doctor's appointment next Saturday.
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Last:
Mark went to the doctor last Saturday.
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Every:
Every Saturday, Michelle starts her day by engaging in a morning routine that includes meditation and exercise.
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This:
This Saturday is our 50th wedding anniversary.
When using "next", "last", "every", or "this", omit "on".
He'll call you next Saturday.
He'll call you on next Saturday.
Follow the same guidelines for the rest of the days of the week:
