When you’re discussing your Monday-to-Friday routine, you might be unsure whether to use in weekdays or on weekdays when referring to these days.
On weekdays is the correct phrase to use when you’re referring to things that happen regularly on these days, like going to work or school.
Saying ‘in weekdays’ sounds odd because this phrase isn’t used in English.
So keep in mind, for any task that happens from Monday to Friday, ‘on weekdays’ is always the correct choice.
In Weekdays or On Weekdays: Which is correct?
When you’re talking or writing about the days from Monday to Friday, it’s correct to use “on weekdays.” This is the usual way to mention things that happen on these days.
To understand how to use “on weekdays” correctly, see the following examples:
- On weekdays, the gym is less crowded.
- I work only on weekdays, from 9 a.m. to 5 p.m.
Usage of ‘In’ and ‘On’ in Weekday Contexts
The prepositions ‘in’ and ‘on’ have different uses in English. You use ‘on’ when talking about specific days or dates.
For example, you’d say “on Monday,” “on Christmas Day,” or “on my birthday.”
So, when discussing the days from Monday to Friday as a group, you correctly say “on weekdays” because you’re referring to specific days of the week.
However, ‘in’ is used for nonspecific times during the day, months, seasons, or years, like “in the morning,” “in December,” “in summer,” or “in 1990.” It’s not used for specific days, including weekdays.
In weekdays: Is it correct?
Saying ‘in weekdays’ doesn’t conform with the usual way English speakers use prepositions for days of the week.
The preposition ‘in’ is often used when talking about parts of the day, months, years, and seasons. For example, in the morning, in December, in 2025, or in the summer.
But, when you’re speaking about specific days of the week, ‘in’ isn’t the common choice. Instead, you typically use ‘on’. You’d say “on Monday” or “on Friday”, not “in Monday” or “in Friday”. Similarly, you use “on weekdays” to talk about the days from Monday to Friday as a group.
Examples of Using “on weekdays” in a Sentence
“I wake up early on weekdays to catch the train.“
“We prefer to visit the gym on weekdays as it’s less crowded.“
“Grocery shopping is done on weekdays to avoid the weekend rush.“
“Every morning on weekdays, we walk our dog before work.“
“You notice that traffic is heavier on weekdays, especially on Friday afternoons.“
“Please try to schedule your doctor’s appointments on weekdays if possible.“
Frequently Asked Questions
What preposition should be used before mentioning specific weekdays?
The correct preposition to use before specific weekdays is “on.” So, when referring to events occurring on specific days, you should say, for example, “on Monday” or “on Friday.”
How is ‘during weekdays’ different from ‘on weekdays’?
“During weekdays” implies throughout the general workweek period without specifying particular days. In contrast, “on weekdays” typically refers to something that happens on each weekday.
What is the appropriate preposition to use when referring to routine events on the weekend?
For routine events that take place on the weekend, the correct preposition is “on.” You would say, “on the weekend,” to talk about habitual actions during that time.
