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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
Mark your calendar
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "Mark your calendar" is correct and usable in written English. You can use it when you want someone to remember a specific date or event. Example: "Don't forget to mark your calendar for the meeting on Friday." Alternative expressions include "Save the date" and "Note the date."
✓ Grammatically correct
News & Media
Wiki
Alternative expressions(20)
save the date
note the date
remember this date
add it to your agenda
Save the date
Note the date
Make a note of the date
Remember this date
Set a reminder
Keep the date in mind
mark your calendar
formal invitation
plan to attend
Set aside the date
Take note of the date
mark the date
Mark the date
Remember the date
take note of the date
remember the date
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
59 human-written examples
Mark your calendar, Sept. 28.
News & Media
Mark your calendar for early October, when the SRX will get an optional turbocharged 2.8-liter V-6 — with 300 horsepower and a healthy 297 pound-feet of torque — matched to a new 6-speed Aisin transmission.
News & Media
"Mark your calendar," he says sardonically, sipping cranberry juice in an uptown New York hotel, a far cry from the cheap Californian motel rooms he used to rent so that he could hack, uninterrupted, for 24 hours straight.
News & Media
Mark your calendar(s) for June 7, Final Fantasy fans, for that's when Final Fantasy Advent Children comes out on Blu-ray.
News & Media
"Mark your calendar, call your band mates, and get set for the best Rock Band party ever on Sunday, September 14th".
News & Media
Mark your calendar, then check the festival's teaser video below.
News & Media
Mark your calendar, set your DVR and fasten your seat belt.
News & Media
Mark your calendar now to bring in the holidays with your favorite YouTube stars!
News & Media
Mark your calendar for Friday, May 13, because that's when you can purchase your very own copy of Wild Ponies new album, "Radiant" out on No Evil Records.
News & Media
Mark your calendar, be part of the most important Social Media Conference in Florida and get ready for an awesome week long experience full of learning and networking!
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
Fans of football, Adam Levine and/or James Spader, mark your calendars now.
News & Media
Expert writing Tips
Best practice
When using "Mark your calendar", clearly state the date and the event to avoid ambiguity. For example, "Mark your calendar for July 4th – Independence Day celebration."
Common error
Avoid using "Mark your calendar" without providing the specific date or event. Saying just "Mark your calendar" leaves the audience wondering what they should be remembering.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "Mark your calendar" functions as an imperative, directly instructing the listener or reader to note a specific date. As seen in Ludwig, this command is typically followed by the date and the event of interest, prompting immediate action.
Frequent in
News & Media
51%
Wiki
21%
HuffPost
17%
Less common in
TechCrunch
6%
The New Yorker
2%
The New York Times
3%
Ludwig's WRAP-UP
In summary, "Mark your calendar" is a very common and grammatically sound imperative phrase used to prompt someone to remember a specific date or event. As Ludwig confirms, this phrase is versatile, fitting in neutral contexts like news announcements and personal reminders. While generally appropriate, consider using more formal alternatives like "note the date" in highly professional settings. Remember to always specify the date and event when using this phrase to avoid confusion.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Save the date
A common and slightly more concise way to ask someone to remember an event.
Note the date
A direct and simple way to indicate that a date is important.
Make a note of the date
Suggests a more formal or deliberate recording of the date.
Remember this date
A straightforward command to remember a specific date.
Set a reminder
Focuses on using technology or other aids to remember.
Keep the date in mind
A gentler reminder, suggesting consideration rather than immediate action.
Circle the date on your calendar
A more visual and emphatic version of marking the calendar.
Don't forget this date
Emphasizes the importance of not overlooking the date.
Put it on your schedule
Focuses on the act of formally adding something to a plan.
Add it to your agenda
Similar to putting it on your schedule but slightly more formal.
FAQs
What does "Mark your calendar" mean?
The phrase "Mark your calendar" is an idiomatic expression used to urge someone to remember an important date or event, often by noting it on their calendar or planner.
How can I use "Mark your calendar" in a sentence?
You can use "Mark your calendar" when announcing an upcoming event or deadline. For example, "Mark your calendar for the product launch on June 15th."
What can I say instead of "Mark your calendar"?
You can use alternatives like "save the date", "note the date", or "remember this date" depending on the context.
Is it appropriate to use "Mark your calendar" in formal communication?
While "Mark your calendar" is widely understood, in very formal contexts, you might prefer "note the date" or "add it to your agenda" for a more professional tone.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested