"on or before" vs "on and before"

Question

"on or before" vs "on and before"

Both "on or before" and "on and before" are correct, but they are used in different contexts. "On or before" implies a deadline or a date range that includes the specified date, while "on and before" implies a specific date that is included in the range. The choice between the two depends on the specific meaning you want to convey.

Last Updated: April 01, 2024

Use "on or before" when referring to a deadline or a date range that includes the specified date. It implies that the action should be completed by the specified date or earlier.

Examples:

Please submit your application on or before the deadline.
The payment must be received on or before the due date.
The event will take place on or before July 15th.

Alternatives:

by the specified date
no later than
on or prior to
on or prior
on or by

Use "on and before" when you want to specify a date range that includes the specified date. It indicates that the action can be completed on the specified date or earlier.

Examples:

The sale is valid on and before December 31st.
You can book your tickets on and before the event date.
The discount is applicable on and before the end of the month.

Alternatives:

up to the specified date
including the specified date
up until
up to and including
up to and including the specified date

Answer 1

on or before

This phrase is correct and commonly used in English, especially in legal and formal contexts to indicate a deadline or a date range that includes the specified date.

Answer 2

on and before

This phrase is correct and can be used to specify a date range that includes the specified date. It implies that the specified date is part of the range.

"on or before" vs "on and before"

on or before

on and before

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