30 Other Ways to Say “Mark Your Calendars” (With Examples)

Emily olivia

30 Other Ways to Say “Mark Your Calendars” (With Examples)

“Mark Your Calendars” has become a common phrase, especially when we want to remind others about an important event or date. However, repeating “Mark Your Calendars” can sometimes feel monotonous, and in different contexts—formal, casual, or professional—you might want a more appropriate or unique alternative.

Whether you’re sending an email, scheduling a meeting, or reminding someone about an event, having alternative ways to say “mark your calendars” can be a game-changer in keeping your communication fresh and engaging.

Why You Need Synonyms for “Mark Your Calendars” in Both Written and Oral Communication

We communicate for various purposes—sometimes with colleagues, other times with friends or clients. Using the same expressions repeatedly, such as “mark your calendars,” can make your communication feel stale. This is especially true when you’re trying to make an impression in professional settings or engage someone personally in casual conversation.

By introducing variety, you not only prevent sounding repetitive but also convey the message with more emphasis, clarity, and even flair. Below, you’ll find several alternative phrases to help you maintain a fresh tone when you say “Mark Your Calendars,” whether you’re writing a formal invitation or a friendly reminder.

What to Say Instead of “Mark Your Calendars”

  • Save the date
  • Circle the date
  • Note the date
  • Block off this day
  • Keep the day open
  • Highlight this date
  • Put this on your agenda
  • Reserve this date
  • Pencil this in
  • Don’t forget this date
  • Lock in the date
  • Jot down this date
  • Flag this date
  • Schedule this in
  • Make a note of this date
  • Mark it down
  • Keep this date free
  • Set aside this day
  • Book this date
  • Make sure to attend
  • Add this to your calendar
  • Write down this date
  • Put this date in your diary
  • Don’t miss this date
  • Make time for this event
  • Take note of this day
  • Remember to hold this date
  • Stick this date in your planner
  • Keep this date in mind
  • Don’t let this date slip

1. Save the Date (Formal)

“Save the date” is often used in formal invitations, especially for weddings or important corporate events. It carries a weight of importance, subtly suggesting that the event should take priority.

Example:
Subject: Save the Date for Our Annual Charity Gala

Dear Emily,

We are thrilled to invite you to our Annual Charity Gala on November 15th. Save the date to join us for an unforgettable evening of celebration and philanthropy.

Looking forward to seeing you there!

Best,
Samantha

Save the Date (Formal)
Save the Date (Formal)

2. Circle the Date (Casual)

If you’re writing in a more relaxed tone, such as to a group of friends or colleagues, “circle the date” feels lighthearted but still signals the importance of the day.

Example:
Subject: BBQ at the Park – Circle the Date!

Hey Team,

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We’re planning a team BBQ at the park on June 7th. Circle the date on your calendar, and don’t forget to bring your appetite!

Cheers,
Ben

3. Note the Date (Neutral)

For neutral settings where you don’t want to sound too formal or too casual, “note the date” hits the right balance. It’s a clear and straightforward way to remind someone of an upcoming event.

Example:
Subject: Note the Date for Staff Training

Hi All,

Please note the date for our upcoming staff training on August 23rd. Attendance is mandatory for all full-time employees.

Thanks,
Management

4. Block Off This Day (Directive)

If you need someone to make space in their schedule for something important, “block off this day” sends a strong, directive message. This phrase works well for professional settings.

Example:
Subject: Block Off This Day for the Board Meeting

Dear Alex,

Please block off this day for our next board meeting on October 4th. We have some critical topics to cover, and your presence is essential.

Best regards,
Joanna

5. Keep the Day Open (Suggestive)

“Keep the day open” works when you want to suggest availability without sounding too forceful. It implies that something important is coming up, but gives the recipient some flexibility.

Example:
Subject: Team Building Activity – Keep the Day Open!

Hi Everyone,

We’re planning a fun team-building activity on July 10th. Keep the day open so you can join us for some friendly competition and team bonding.

Best,
Laura

6. Highlight This Date (Emphatic)

When you need to emphasize the significance of a particular date, “highlight this date” adds a layer of importance. It works well in emails where the event is critical.

Example:
Subject: Highlight This Date for the Product Launch

Dear Marketing Team,

We’re excited to announce that our new product launch is set for December 1st. Highlight this date on your calendar—it’s going to be a major milestone for our company!

Best regards,
Sarah

"Highlight This Date (Emphatic)"
“Highlight This Date (Emphatic)”

7. Put This on Your Agenda (Professional)

In professional environments, using “put this on your agenda” gives your request a formal, structured tone. It’s ideal for meetings or important business events.

Example:
Subject: Quarterly Review Meeting – Put This on Your Agenda

Dear Team,

Our quarterly review meeting is scheduled for September 22nd at 2 PM. Please put this on your agenda and prepare to discuss Q3 results.

Best,
Richard

8. Reserve This Date (Formal)

Another formal alternative, “reserve this date,” is often used in formal invitations or for events requiring special planning or attendance. It implies exclusivity or importance.

Example:
Subject: Reserve This Date for the Annual Conference

Dear Attendees,

We are pleased to announce that the Annual Business Conference will take place on March 3rd. Reserve this date for a day of insightful sessions and networking opportunities.

Warm regards,
Conference Team

9. Pencil This In (Informal)

“Pencil this in” has an informal, flexible tone. It suggests the event is important, but you’re leaving room for changes if needed. It works well for casual invites.

Example:
Subject: Lunch Meeting – Pencil This In

Hi Jessica,

Let’s meet for lunch on October 12th at noon. Pencil this in for now, and we can confirm the details closer to the day.

Best,
Tom

10. Don’t Forget This Date (Reminder)

For events that are especially important, a gentle reminder like “don’t forget this date” ensures the recipient doesn’t overlook it. It’s a simple but effective way to convey importance.

Example:
Subject: Don’t Forget This Date – Client Presentation

Dear Team,

Just a quick reminder that we have our client presentation on April 28th at 10 AM. Don’t forget this date—it’s crucial for securing the contract.

Thanks,
Michael

11. Lock in the Date (Assertive)

“Lock in the date” works well when you want the recipient to be firm about the commitment. It’s direct and suggests that the event should take precedence.

Example:
Subject: Lock in the Date for Our Strategy Session

Dear Jonathan,

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Please lock in the date for our strategy session on September 18th. We’ll be finalizing key decisions for the upcoming quarter, so your attendance is crucial.

Best,
Sophie

12. Jot Down This Date (Casual)

For casual settings, “jot down this date” has a friendly, relaxed tone, perfect for informal invitations or personal reminders.

Example:
Subject: Jot Down This Date – Family Reunion

Hi Everyone,

We’re planning our family reunion for August 25th. Jot down this date and get ready for a fun-filled day!

Cheers,
Aunt Lisa

Jot Down This Date (Casual)
Jot Down This Date (Casual)

13. Flag This Date (Emphatic)

“Flag this date” conveys urgency and importance, often used when you want to make sure the recipient pays extra attention to a specific event.

Example:
Subject: Flag This Date for the Software Update

Dear Team,

We’re scheduling the software update on December 15th. Flag this date to avoid any disruptions to your workflow during the update process.

Thanks,
IT Department

14. Schedule This In (Professional)

In professional settings, “schedule this in” is a straightforward and practical way to ensure that the event makes it onto someone’s calendar.

Example:
Subject: Schedule This In – Monthly Review Meeting

Hi Claire,

Please schedule this in—our monthly review meeting is set for November 3rd at 9 AM. Let me know if you have any scheduling conflicts.

Best,
Alan

15. Make a Note of This Date (Neutral)

“Make a note of this date” is a neutral and polite way to remind someone of an important upcoming event.

Example:
Subject: Make a Note of This Date – Office Party

Hi All,

We’re having our annual office party on December 20th. Please make a note of this date and join us for a fun evening of celebration!

Best,
HR Team

16. Mark It Down (Casual)

For a casual tone, “mark it down” is short, friendly, and gets the job done without any formality.

Example:
Subject: Mark It Down – Summer Beach Party

Hey Team,

We’re hosting a summer beach party on July 14th. Mark it down and don’t miss out on the fun!

See you there,
Chloe

"Mark It Down (Casual)"
“Mark It Down (Casual)”

17. Keep This Date Free (Suggestive)

“Keep this date free” implies the event is worth attending, and it gently encourages the recipient to ensure their availability without being too demanding.

Example:
Subject: Keep This Date Free for a Dinner with Friends

Hi Mark,

We’re planning a dinner with the gang on October 9th. Keep this date free and join us for some good food and great company!

Best,
Erin

18. Set Aside This Day (Directive)

“Set aside this day” is assertive and works well when you want someone to reserve time specifically for an event.

Example:
Subject: Set Aside This Day for Our Leadership Workshop

Dear Team,

Please set aside this day—we have a leadership workshop on November 30th, and your participation is essential.

Best regards,
Natalie

19. Book This Date (Professional)

“Book this date” is professional and direct, perfect for formal events or meetings that require a firm commitment.

Example:
Subject: Book This Date for the Annual General Meeting

Dear Shareholders,

The Annual General Meeting will be held on January 10th. Book this date to participate in the discussions and decisions that will shape our future.

Best regards,
Board of Directors

20. Make Sure to Attend (Reminder)

“Make sure to attend” is less about scheduling and more about ensuring someone shows up for an event. It works well as a reminder for important occasions.

Example:
Subject: Make Sure to Attend the Client Presentation

Dear Team,

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Just a friendly reminder—our client presentation is scheduled for March 5th. Make sure to attend, as this meeting is key to securing the deal.

Best,
Oliver

Make Time for This Event (Suggestive)
Make Time for This Event (Suggestive)

21. Add This to Your Calendar (Direct)

A straightforward and professional alternative, “add this to your calendar” is a no-nonsense way to ensure the recipient marks the date.

Example:
Subject: Add This to Your Calendar – Q4 Planning Meeting

Dear Finance Team,

Please add this to your calendar—our Q4 planning meeting is on December 10th. Let’s be prepared to finalize the budget.

Best,
David

22. Write Down This Date (Neutral)

“Write down this date” is another neutral option that works in both professional and casual settings. It simply asks the recipient to take note of the date.

Example:
Subject: Write Down This Date – Conference Call

Hi Team,

We have a conference call scheduled for September 27th. Write down this date so we can align our strategies moving forward.

Best,
Helen

23. Put This Date in Your Diary (Formal)

For a more formal, traditional tone, especially in British English, “put this date in your diary” is a polite way to request someone marks an important day.

Example:
Subject: Put This Date in Your Diary – Corporate Retreat

Dear Team,

We are pleased to announce that our corporate retreat will be held on February 20th. Please put this date in your diary to ensure your attendance.

Kind regards,
Corporate Affairs Team

24. Don’t Miss This Date (Reminder)

When you want to emphasize the importance of an event, “don’t miss this date” works as a gentle but firm reminder.

Example:
Subject: Don’t Miss This Date – Team Performance Review

Dear Chris,

Our team performance review is on April 11th. Don’t miss this date—it’s important that everyone attends to discuss our progress.

Best,
Tina

25. Make Time for This Event (Suggestive)

“Make time for this event” suggests that the event is worth prioritizing, and it encourages the recipient to plan ahead.

Example:
Subject: Make Time for This Event – Marketing Summit

Dear Team,

We’re hosting a Marketing Summit on October 15th. Make time for this event—it’s going to be packed with insights and networking opportunities.

Best regards,
Liam

Make Time for This Event (Suggestive)
Make Time for This Event (Suggestive)

26. Take Note of This Day (Neutral)

“Mark Your Calendars” is another neutral, straightforward option that reminds the recipient to be aware of an upcoming date.

Example:
Subject: Take Note of This Day – New Employee Orientation

Hi Everyone,

Our new employee orientation is scheduled for July 22nd. Take note of this day so we can welcome our new team members!

Best,
HR Department

27. Remember to Hold This Date (Reminder)

“Remember to hold this date” adds a sense of personal responsibility, making sure the recipient acknowledges the importance of the event.

Example:
Subject: Remember to Hold This Date for the Fundraiser

Dear Guests,

Our charity fundraiser is on September 12th. Remember to hold this date and join us for a great cause!

Best regards,
Emily

28. Stick This Date in Your Planner (Casual)

For a casual setting, especially with colleagues or friends, “stick this date in your planner” feels informal but still serves as an effective reminder.

Example:
Subject: Stick This Date in Your Planner – Project Launch

Hi Team,

We’re launching the new project on November 5th. Stick this date in your planner so we can celebrate the hard work we’ve put in!

Cheers,
Aaron

29. Keep This Date in Mind (Suggestive)

“Keep this date in mind” is a softer, more suggestive way of ensuring the recipient remains aware of the event without being too forceful.

Example:
Subject: Keep This Date in Mind – Strategy Workshop

Hi All,

We’re planning a strategy workshop on October 27th. Keep this date in mind as we’ll be working on some key initiatives.

Best,
Ryan

30. Don’t Let This Date Slip (Reminder)

When the event is especially important, “don’t let this date slip” adds an extra layer of urgency, ensuring the recipient understands the significance.

Example:
Subject: Don’t Let This Date Slip – Contract Negotiation

Dear Team,

We have a contract negotiation meeting on June 14th. Don’t let this date slip—it’s critical that we’re all prepared.

Best,
Nathan

Don’t Let This Date Slip (Reminder)
Don’t Let This Date Slip (Reminder)

Conclusion

In both professional and personal contexts, finding alternative ways to say “mark your calendars” can enhance your communication, keeping it fresh and engaging. Whether you’re sending out a formal invitation with phrases like “save the date” or keeping things casual with “jot down this date,” choosing the right words helps set the tone for your message.

By using the various options provided in this article, you can better suit your audience and occasion while ensuring that important dates are remembered. The next time you need to send a reminder or invite, feel free to mix things up, and don’t hesitate to try out these versatile, polished alternatives. It’s all about making sure your message stands out and your recipient feels the importance of the date.

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