The phrase “Mark your calendars” is often used as a friendly reminder or announcement to get people’s attention about an upcoming event. It’s a fun and casual way of saying “Don’t forget this date!” and is commonly seen in emails, social media posts, invitations, and event promotions. While the phrase is widely recognized, using it too often can sound a little predictable or too informal—especially if you want your message to feel more professional or creative.
Finding alternatives to “Mark your calendars” allows you to better match the tone of your message—whether you’re writing a formal invitation, sharing a corporate announcement, or promoting a special occasion. The right wording can make your communication sound more engaging, more memorable, and perfectly suited to your audience.
What Does “Mark Your Calendars” Mean?
The phrase “Mark your calendars” is a friendly and informal way to tell people to remember an important date or make a note of an upcoming event so they don’t forget it. It’s often used in announcements, invitations, and reminders to highlight something special—like a meeting, celebration, launch, or gathering—and is meant to grab people’s attention while building a bit of anticipation for what’s coming.
When to Use “Mark Your Calendars”
Use this phrase when:
- Announcing events, meetings, or deadlines.
- Sending save-the-date notices.
- Reminding teams or clients about upcoming commitments.
Is It Professional to Say “Mark Your Calendars”?
Yes—but it depends on the context. In casual invites or team emails, it works fine. But for formal business communication or client invitations, alternatives like “Please save the date” or “Kindly note the following date” may sound more professional.
Pros and Cons
Pros:
- Clear and easy to understand.
- Works well in casual and semi-formal communication.
- Friendly and engaging tone.
Cons:
- Can sound too casual in formal settings.
- Overused in event invites and announcements.
- May not fit international or cross-cultural communication styles.
Synonyms For“Mark Your Calendars”
- Save the Date
- Please Reserve This Date
- Kindly Note the Date
- Be Sure to Join Us On
- Don’t Miss This Date
- Circle the Date
- Add This to Your Calendar
- Block the Date
- Please Hold the Date
- Set a Reminder for This Date
- Put This Date in Your Planner
- Please Keep This Date in Mind
- Kindly Keep This Date Free
- Secure This Date
- Remember This Date
- Schedule This Date
- Lock in This Date
- Make a Note of This Date
- Please Jot Down the Date
- Keep This Day Clear
- Save This Day
- Take Note of This Date
- Highlight This Date
- Mark the Day
- Put This Date Aside
1. Save the Date
Meaning: A polite reminder to reserve a specific date for an event.
Definition: A professional phrase commonly used in invitations, both personal and business.
Tone: Polite, professional, formal.
Detailed Explanation: This phrase is one of the most popular and professional alternatives, especially for weddings, conferences, and formal gatherings. It’s short, clear, and widely understood.
Scenario Example:
- “Save the date for our annual company gala on November 15th.”
Best Use: Formal events, weddings, client invitations.
When Not to Use: Casual team reminders—it can sound too formal.
2. Please Reserve This Date
Meaning: A respectful way of asking someone to set aside a date.
Definition: A formal reminder to ensure people keep their schedules clear.
Tone: Respectful, formal, professional.
Detailed Explanation: This phrase works best in corporate settings or professional event invites where you want to sound polished and considerate.
Scenario Example:
- “Please reserve this date for our upcoming leadership meeting: October 3rd.”
Best Use: Business emails, professional invitations, conference announcements.
When Not to Use: Casual chats—it may feel too formal.
3. Kindly Note the Date
Meaning: A polite instruction to take note of an upcoming date.
Definition: A professional alternative often used in formal correspondence.
Tone: Formal, respectful, professional.
Detailed Explanation: This phrase is especially useful in corporate and international settings where politeness and formality matter.
Scenario Example:
- “Kindly note the date of our next quarterly review: September 28th.”
Best Use: Formal workplace communication, client invitations, cross-cultural business.
When Not to Use: Casual group messages—it can sound too stiff.
4. Be Sure to Join Us On
Meaning: An inviting reminder about an upcoming event.
Definition: A warm and engaging way of encouraging participation.
Tone: Friendly, welcoming, professional.
Detailed Explanation: This phrase not only highlights the date but also encourages involvement, making it ideal for company events, webinars, or community gatherings.
Scenario Example:
- “Be sure to join us on October 12th for our product launch event.”
Best Use: Event promotions, workplace announcements, newsletters.
When Not to Use: Highly formal settings—it leans more casual.
5. Don’t Miss This Date
Meaning: A reminder that an event is important and should not be overlooked.
Definition: A phrase used to create excitement and urgency about an event.
Tone: Energetic, enthusiastic, persuasive.
Detailed Explanation: Great for marketing campaigns, employee events, or big launches, this phrase helps grab attention and emphasizes importance.
Scenario Example:
- “Don’t miss this date—October 22nd—when we reveal our new service line.”
Best Use: Promotional emails, internal campaigns, public announcements.
When Not to Use: Formal client communication—it may sound too pushy.
6. Please Hold the Date
Meaning: A polite way to ask someone to keep their schedule open.
Definition: A professional alternative to remind someone not to book other commitments.
Tone: Formal, polite, considerate.
Detailed Explanation: Often used in business, weddings, and formal invitations where courtesy and respect are important.
Scenario Example:
- “Please hold the date: November 2nd, for our annual strategy session.”
Best Use: Corporate invitations, weddings, client events.
When Not to Use: Casual messages—it can sound too formal.
7. Put This on Your Schedule
Meaning: A reminder to add an event to one’s agenda.
Definition: A direct but professional way of making sure the date is remembered.
Tone: Professional, straightforward, clear.
Detailed Explanation: It works especially well in team or internal settings where clarity matters more than formality.
Scenario Example:
- “Put this on your schedule: training workshop on October 18th.”
Best Use: Workplace emails, internal communication.
When Not to Use: Formal client invitations—it may sound too casual.
8. Take Note of the Date
Meaning: A respectful way of reminding someone to remember a date.
Definition: A formal phrase often used in professional announcements.
Tone: Formal, respectful, clear.
Detailed Explanation: Common in corporate communication, government notices, or formal letters, where clarity and professionalism are required.
Scenario Example:
- “Take note of the date: December 5th, for the board of directors’ meeting.”
Best Use: Professional memos, official notices, formal reminders.
When Not to Use: Casual reminders among friends—it feels too serious.
9. Don’t Forget This Date
Meaning: A friendly way to remind someone about an important date.
Definition: A slightly casual alternative that emphasizes importance.
Tone: Friendly, approachable, persuasive.
Detailed Explanation: Works well when you want to keep it light yet still highlight urgency or importance.
Scenario Example:
- “Don’t forget this date: October 7th, our company picnic.”
Best Use: Internal events, newsletters, casual announcements.
When Not to Use: Very formal settings—it may sound too playful.
Also Read This: 25 Other Ways to Say “No Worries” Professionally (With Examples)
10. Make a Note of This
Meaning: Asking someone to write down or remember an important date.
Definition: A professional reminder that balances formality and friendliness.
Tone: Clear, professional, respectful.
Detailed Explanation: Useful in emails and professional reminders where you want to be polite but not overly formal.
Scenario Example:
- “Make a note of this: the project review will be on September 21st.”
Best Use: Workplace communication, professional emails.
When Not to Use: Highly formal event invitations—it may sound too casual.
11. Block the Date
Meaning: Asking someone to keep a specific date open.
Definition: A modern and popular way of saying “don’t schedule anything else.”
Tone: Professional, concise, direct.
Detailed Explanation: Works very well in corporate and event planning contexts, especially in emails or meeting requests.
Scenario Example:
- “Please block the date: January 10th, for our leadership summit.”
Best Use: Business communication, conferences, client events.
When Not to Use: Personal invitations—it may feel too corporate.
12. Jot This Down
Meaning: A casual reminder to write something down.
Definition: A friendly and informal way to ask someone to note a date.
Tone: Casual, conversational, lighthearted.
Detailed Explanation: Works great in team chats, casual invites, or family/friend reminders, but not in business settings.
Scenario Example:
- “Jot this down—holiday party on December 22nd!”
Best Use: Casual team reminders, family or friends.
When Not to Use: Formal or professional communication—it’s too informal.
13. Remember This Date
Meaning: Asking someone to keep a date in mind.
Definition: A clear and friendly reminder phrase.
Tone: Neutral, professional, approachable.
Detailed Explanation: Straightforward and versatile—it works in both personal and professional communication.
Scenario Example:
- “Remember this date: October 1st, the launch of our new website.”
Best Use: Announcements, workplace events, personal invites.
When Not to Use: Extremely formal contexts—it may lack polish.
14. Kindly Keep This Date Free
Meaning: A polite way of requesting availability.
Definition: A formal alternative often used in invitations.
Tone: Respectful, professional, formal.
Detailed Explanation: Perfect for formal letters, event invites, and professional gatherings where etiquette is important.
Scenario Example:
- “Kindly keep this date free: November 20th, for our networking dinner.”
Best Use: Formal invites, professional events, weddings.
When Not to Use: Workplace chats—it’s too formal.
15. Don’t Schedule Anything Else That Day
Meaning: A direct reminder not to plan conflicting events.
Definition: A casual but clear way of emphasizing importance.
Tone: Friendly, casual, direct.
Detailed Explanation: Useful for internal team communication where you need clarity without formality.
Scenario Example:
- “Don’t schedule anything else that day—we’ve got the full-day retreat.”
Best Use: Internal events, team chats, workplace reminders.
When Not to Use: Formal or client-facing invites—it’s too casual.
16. Circle the Date
Meaning: A creative reminder to highlight a date.
Definition: A slightly playful phrase encouraging people to mark their calendar.
Tone: Friendly, engaging, informal.
Detailed Explanation: Works best for casual events, school announcements, or community events, where a little playfulness adds charm.
Scenario Example:
- “Circle the date—December 10th—for our charity fundraiser!”
Best Use: Schools, communities, casual workplace events.
When Not to Use: Formal business settings—it may sound childish.
17. Please Set Aside This Date
Meaning: A polite request to keep a date open.
Definition: A formal and respectful phrase for invitations.
Tone: Polite, professional, formal.
Detailed Explanation: Works very well in business, weddings, and formal events where you want to sound professional yet caring.
Scenario Example:
- “Please set aside this date: October 30th, for our client appreciation dinner.”
Best Use: Professional and personal formal events.
When Not to Use: Casual reminders—it may sound too stiff.
18. This Date is Important
Meaning: Emphasizing that the date should not be missed.
Definition: A phrase that highlights the importance or urgency of the date.
Tone: Serious, professional, direct.
Detailed Explanation: Good for deadlines, launches, and high-priority events, where the date matters greatly.
Scenario Example:
- “This date is important—project handover on November 14th.”
Best Use: Deadlines, workplace reminders, formal announcements.
When Not to Use: Casual or fun events—it may sound too serious.
19. Please Keep This in Mind
Meaning: A polite way of asking someone to remember a date.
Definition: A respectful phrase for softer reminders.
Tone: Polite, professional, empathetic.
Detailed Explanation: Great for professional contexts where you want to remind people gently without sounding demanding.
Scenario Example:
- “Please keep this in mind: the training session will be on October 25th.”
Best Use: Emails, client communication, workplace updates.
When Not to Use: Casual invites—it may sound overly formal.
20. Note This in Your Planner
Meaning: A reminder to write down a date in an agenda or planner.
Definition: A practical phrase for scheduling.
Tone: Professional, straightforward, clear.
Detailed Explanation: Good for professional settings where people often use planners or digital calendars.
Scenario Example:
- “Note this in your planner: Q4 kickoff meeting, September 29th.”
Best Use: Workplace reminders, formal scheduling.
When Not to Use: Fun or casual invites—it may sound too mechanical.
21. Be Ready On This Date
Meaning: A reminder with a sense of preparation.
Definition: A phrase that emphasizes both remembering and preparing.
Tone: Professional, direct, slightly urgent.
Detailed Explanation: Useful for training, launches, or important deadlines where readiness is key.
Scenario Example:
- “Be ready on this date: October 15th, for our live product demo.”
Best Use: Workplace deadlines, event launches.
When Not to Use: Social events—it may sound too intense.
22. Keep This Day Open
Meaning: A casual request not to plan anything else on that day.
Definition: A light, friendly way of asking for availability.
Tone: Casual, friendly, professional.
Detailed Explanation: This works well for internal meetings, casual invites, and social events.
Scenario Example:
- “Keep this day open: December 8th, for our holiday lunch.”
Best Use: Workplace teams, casual invites.
When Not to Use: Formal or client-facing communication.
23. Please Plan Around This Date
Meaning: A polite way to ask someone to keep a date free when scheduling.
Definition: A professional phrase used in workplace communication.
Tone: Polite, professional, practical.
Detailed Explanation: Great for business planning, project management, and scheduling where cooperation is needed.
Scenario Example:
- “Please plan around this date: October 9th, for the system migration.”
Best Use: Workplace scheduling, business communication.
When Not to Use: Casual personal invites—it sounds too formal.
24. Don’t Miss Out On This
Meaning: A reminder that the event is worth attending.
Definition: A persuasive, enthusiastic phrase often used in promotions.
Tone: Energetic, persuasive, promotional.
Detailed Explanation: Excellent for marketing emails, event promotions, and campaigns where excitement matters.
Scenario Example:
- “Don’t miss out on this—November 11th, our grand opening event.”
Best Use: Promotions, newsletters, social media.
When Not to Use: Formal invites—it may feel too salesy.
25. Add This to Your Calendar
Meaning: A direct and modern way of telling someone to log the date.
Definition: A clear and professional reminder that works for both personal and business settings.
Tone: Professional, modern, practical.
Detailed Explanation: This is one of the most universal phrases, widely understood in today’s digital calendar-driven world.
Scenario Example:
- “Add this to your calendar: October 27th, our all-hands company meeting.”
Best Use: Emails, digital invites, corporate communication.
When Not to Use: Rarely unsuitable—it’s highly versatile.
FAQs on Other Ways to Say “Mark Your Calendars”
Q1. What can I say instead of “Mark Your Calendars” in a professional email?
You can use phrases like “Please hold the date,” “Add this to your calendar,” or “Please set aside this date.” These sound polite and professional.
Q2. Which alternatives are best for formal invitations?
Formal phrases include “Kindly keep this date free,” “Please hold the date,” or “Please set aside this date.”
Q3. What are some casual alternatives to “Mark Your Calendars”?
For friends, family, or team chats, you can say “Jot this down,” “Circle the date,” or “Don’t forget this date.”
Q4. Can I use “Block the Date” in a business setting?
Yes, “Block the date” is very common in professional emails, especially for corporate events, conferences, or meetings.
Q5. What’s the most versatile alternative to “Mark Your Calendars”?
“Add this to your calendar” works in both casual and professional contexts, making it one of the safest and most widely used options.
Conclusion
In the end, the phrase “Mark your calendars” is a simple and effective way to grab attention and highlight an important date. But by exploring different alternatives, you can make your reminder sound more creative, professional, or personal depending on the audience and context. Whether you’re sending out a formal invitation, posting a casual announcement, or promoting a special event, the right wording helps set the tone and makes your message more memorable. The key is to choose phrases that not only encourage people to remember the date, but also build excitement and anticipation for what’s to come.
