Which one is correct?
"on all days" or "for all days"?

Question

Which one is correct?
"on all days" or "for all days"?

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Use "on all days" when you want to emphasize something that happens consistently on every day or on specific days.

Examples:

I exercise on all days of the week.
On all days except Sundays, the store opens at 9 a.m.

Alternatives:

every day
each day
daily

Use "for all days" when you want to express that something applies to the entirety of a period of time.

Examples:

The festival will last for all days of the week.
She packed enough food for all days of the camping trip.

Alternatives:

throughout all days
during all days
for the entire duration

Both "on all days" and "for all days" are correct, but they are used in different contexts. "On all days" is used to refer to specific days or occasions, while "for all days" is used to indicate a duration or period of time. They are not directly comparable as they serve different purposes.

Last Updated: March 15, 2024