HR Calendar 2025

As we inch closer to the end of the year, many HR professionals are gearing up for another round of initiatives and celebrations that build stronger bonds, boost team morale, and ramp up employee engagement. Whether it’s Mental Health Awareness Month or National Working Parents Day, there’s always an excuse for a coffee break chat or calls for celebration!

We’ve put together a comprehensive HR Calendar 2025 to make things simple for you and your HR team. It’s got all the key dates, holidays, special events, and the nitty-gritty details on annual payroll and tax compliance that you should keep tabs on. That’s not all; we’ve compiled a comprehensive list of employee engagement ideas throughout the year to keep the spirits and energy high all through the year.

Download your HR Calendar 2025 now!

January

First up on our HR Calendar 2025, January is the month for new beginnings and the perfect time to set the pace for the new year. Kick off the new year with your team by reaffirming your company’s mission statement and company values. Consider engaging in a company-wide vision board activity to get the team on the same page and clearly communicate yearly and quarterly goals.

January also sees new hires coming on board, and providing a positive onboarding experience is key to boosting employee engagement and retention. Download our free employee onboarding checklist and new hire training plan template to ensure a smooth onboarding journey for your new employees. If you’re looking for engaging onboarding activities, check out our 15 onboarding activities to welcome new hires for inspiration!

Key dates and holidays

• New Year’s Day - 1 January 2025
• Data Privacy Day - 28 January 2025
• Chinese New Year - 29 January 2025

Employee Engagement Ideas

• Clean Off Your Desk Day - 13 January 2025
• Bagel Day - 15 January 2025

February

Thaipusam is just around the corner! Decorate your workplace with festive decorations, as it adds a touch of celebration but also makes employees feel appreciated, lifting their spirits. Additionally, consider spreading some love on Valentine’s Day by stocking up the pantry with chocolates for a sweet treat.

Not to mention, mark Random Acts of Kindness Day on 17 February 2025 by encouraging employees to nominate someone who demonstrated a random act of kindness during the work week. Let’s keep the positive vibes flowing all year round! 

Key dates and holidays

• Thaipusam - 11 February 2025
• Valentine’s Day - 14 February 2025
• National Day of Brunei Darussalam - 23 February 2025
• Ramadan - 28 February 2025

Employee Engagement Ideas

• Random Acts of Kindness Day - 17 February 2025

March

As we approach the end of the first quarter, March is not only a good time to evaluate your current processes and initiatives but also serves as an opportunity to celebrate small wins on Employee Appreciation Day that falls on 7 March 2025. Acknowledging these wins is a powerful way to boost employee morale and overall engagement. 

March is also the perfect time to get a head start for the upcoming mid-year performance review. Omni’s total performance review kit is the perfect resource to kickstart the process and elevate your team’s performance to new heights!

Furthermore, March is recognized as Women’s History Month. Consider these significant days and events when planning your HR Calendar 2025.

Read next: 12 Employee Recognition Examples to Keep Your Team Engaged All Year

Key Dates and Holidays

• International Women’s Day - 8 March 2025
• St. Patrick’s Day - 17 March 2025
• Hari Raya Aidilfitri - 31 March 2025 
• Performance Review Preparation

Employee Engagement Ideas

• Women's History Month
• Employee Appreciation Day - 7 March 2025
• Pi Day - 14 March 2025

Compliance, Tax & Payroll Information

• Philippines: Deadline for companies to file annual income tax returns -  31 March 2025

April

Entering April in our HR Calendar 2025, we joyously usher in Songkran Festival celebrations. Infuse the workplace with festive spirit by adding appropriate decorations. Additionally, observe Earth Day by inspiring eco-friendly practices among your team, fostering a culture of sustainability and environmental awareness.

Inject a much-needed dose of laughter with an April Fool’s Day celebration aimed to foster team bonding and showcase the lighter side of office life. A cost-effective way is to transform the office space to match your quirky theme. This can be done simply by adding fake signage, altering photos, or even rearranging office furniture in unexpected ways.

Key Dates and Holidays

• April Fool’s Day - 1 April 2025
• National Pet Day - 11 April 2025
• Songkran Festival - 13 to 15 April 2025
• Good Friday - 18 April 2025
• Easter Sunday - 20 April 2025
• Earth Day - 22 April 2025
• Administrative Professionals’ Day - 23 April 2025

Employee Engagement Ideas

• National Volunteer Month
• April Fool’s Day - 1 April 2025
• National Pet Day - 11 April 2025

Compliance, Tax & Payroll Information

• Philippines: Deadline for individuals to file income tax returns - 15 April 2025
• Singapore: Deadline for individuals to file income tax returns - 15 April 2025
• Malaysia: Paper filing deadline for individual income tax returns - 30 April 2025

May

It’s important to establish a supportive environment for your team to express their thoughts and concerns and seek camaraderie within the workplace. Celebrate Mental Health Awareness Month by encouraging peer-to-peer shoutouts, introducing mental health days, setting up zen spaces in the office, conducting informative mental health workshops, and providing necessary resources and support. 

Key Dates and Holidays

• May Day - 1 May 2025
• Labor Day - 1 May 2025
• Mother’s Day - 11 May 2025
• Wesak - 12 May 2025
• National Bike to Work Day - 16 May 2025
• Memorial Day - 26 May 2025
• Dragon Boat Festival - 31 May 2025

Employee Engagement Ideas

• Mental Health Awareness Month
• World Password Day - 1 May 2025
• Star Wars Day - 4 May 2024
• HR Professional Day - 20 May 2025

Compliance, Tax & Payroll Information

• Malaysia: E-filing deadline for individual income tax returns - 15 May 2025

June

Hooray, we’re halfway there in our HR Calendar 2025! Brighten your team’s day by indulging in sweet treats on National Donut Day on 6 June 2025! 

As you prepare for mid-year performance reviews, streamline your process with our ultimate performance review template and a collection of 200 performance review phrases for managers. Gain a well-rounded understanding of what makes a comprehensive performance review and find inspiration for crafting the best performance review questions and answers.

Learn more: 30 Mid Year Performance Review Questions to Spark Action

Key Dates and Holidays

• Philippines’ Independence Day - 12 June 2025
• Father’s Day - 15 June 2025
• Hari Raya Haji - 19 June 2025
• Mid-Year Performance Reviews

Employee Engagement Ideas

• Leave the Office Early Day - 2 June 2025
• National Donut Day - 6 June 2025

Compliance, Tax & Payroll Information

• Hong Kong: Deadline for companies to file profits tax return - 3 June 2025
• Hong Kong: Deadline for individuals to file salaries tax returns - 3 June 2025
• Malaysia: Deadline for companies to file paper annual audited accounts and tax return - 30 June 2025

July

As we welcome July in our HR Calendar 2025, honor the deliciousness of chocolate on World Chocolate Day on 7 July 2025. Take this moment to encourage your team to unwind and rejuvenate for the second half of the year with a dedicated Self-Care Day on 24 July 2025. Furthermore, give a special shoutout to the interns in your team on National Intern Day on 31 July 2025 to show your appreciation! 

Key Dates and Holidays

• Parents’ Day - 27 July 2025

Employee Engagement Ideas

• National Workaholics Day - 5 July 2025
• World Chocolate Day - 7 July 2025
• International Self-Care Day - 24 July 2025
• National Intern Day - 31 July 2025

Compliance, Tax & Payroll Information

• Malaysia: E-filing deadline for companies to submit annual audited accounts and tax return - 31 July 2025

August

Books have a way of bringing people together. Switch things up from the usual happy hour and snacks by encouraging your team to exchange their favorite books in celebration of Book Lovers Day on 9 August 2025. Consider organizing a book club, providing colleagues with an opportunity to connect through their shared love for reading. 

Need some recommendations? Explore our curated list of the best books for HR professionals!

Key Dates and Holidays

• Singapore’s National Day - 9 August 2025
• Indonesia’s National Day - 17 August 2025
• Philippines’ National Heroes Day - 25 August 2025
• Malaysia’s National Day - 31 August 2025

Employee Engagement Ideas

• International Cat Day - 8 August 2025
• Book Lovers Day - 9 August 2025
• National Financial Awareness Day - 14 August 2025
• National Dog Day - 26 August 2025

September

September promises a blend of cultural richness and professional appreciation, making it a significant month for both personal and professional milestones. 

Recognize the dedication, sacrifice, and tireless efforts of working parents by celebrating National Working Parents Day on 16 September 2025. This can be done through offering flexible work options, reevaluating the benefit packages, providing parental leave, and more.

Key Dates and Holidays

• National Day of Vietnam - 2 September 2025
• Malaysia Day - 16 September 2025

Employee Engagement Ideas

• National Working Parents Day - 16 September 2025 
• IT Professionals Day - 16 September 2025

October

As the final quarter of our HR Calendar 2025 rolls around, this is a great time to assess team dynamics and be vigilant for signs of employee burnout, ensuring a supportive work environment. Celebrate World Mental Health Day on 10 October 2025 by fostering discussions on mental well-being, organizing workshops, and providing resources to bolster the mental health of your team.

The month of October also brings the joyous celebration of Deepavali. Embrace the cultural diversity within your workplace by decorating the office with vibrant decor, creating an inclusive atmosphere that enhances employee engagement and fosters a sense of belonging. 

Additionally, consider organizing a festive gathering during the Mid-Autumn festival on 6 October 2025, encouraging colleagues to share their favorite mooncake flavors, or even hosting a lantern-making competition to get in the spirit.

Download our DEI calendar to stay informed of key dates and foster a supportive environment where your employees can celebrate their cultures.

Key Dates and Holidays

• Mid-Autumn Festival - 6 October 2025
• World Mental Health Day - 10 October 2025
• Deepavali - 20 October 2025
• Halloween - 31 October 2025

Employee Engagement Ideas

• Diversity and Inclusion Awareness Month
• World Mental Health Day - 10 October 2025
• Halloween - 31 October 2025

November

In November, take the opportunity to foster gratitude and kindness during National Gratitude Month. Set up gratitude walls around the workplace, providing spaces for employees to share their appreciations openly. Alternatively, host luncheons to bring the team together, allowing them to share a meal and express gratitude towards one another. 

Professionally, November also signifies National Career Development Month. Embrace this occasion by arranging skill-building workshops, engaging in career or networking events, and facilitating impactful 1-on-1 career development conversations. It’s also the perfect time for year-end reviews and goal setting, allowing for reflection on personal milestones and strategic planning for the new year.

Key Dates and Holidays

• World Kindness Day - 13 November 2025
• Year-End Review and Goal Setting

Employee Engagement Ideas

• National Gratitude Month
• National Career Development Month

Compliance, Tax & Payroll Information

• Singapore: Deadline for companies to file annual audited accounts and tax returns - 30 November 2025

December

We’re at the end of our HR Calendar 2025! December is the time to sit back, unwind, reflect on the year’s accomplishments, and celebrate milestones. Consider planning fun activities for your team to discuss the highlights of the year and hosting a festive Secret Santa gift exchange to get your team in the festive mood!

Key Dates and Holidays

• Christmas Eve - 24 December 2025
• Christmas Celebration - 25 December 2025
• New Year's Eve - 31 December 2025
• Year-End Break and Holidays

Employee Engagement Ideas

• Holiday Celebrations

Planning Your HR Calendar 2025

That’s a wrap on our comprehensive HR Calendar 2025! Bookmark this calendar to plan your key events and holidays. If you would like the printable version with an added bonus of employee engagement ideas applicable throughout the year and reap the engagement benefits that come from these occasions, 

‍Download your HR Calendar 2025 now!

Omni’s intuitive, all-in-one HRIS helps HR teams and managers keep track of key dates, engagement opportunities, and manage employee schedules easily with automated reminders and at-a-glance scheduling. Omni’s platform allows you to create bespoke calendars for your employees around the globe, with pre-loaded holidays and cultural happenings based on your employee’s location, and automated alerts so you never miss a holiday, work anniversary, or opportunity to engage with your team or prepare for your next important HR initiative. 

With a full suite of modules to support every aspect of your business, Omni’s platform offers an intuitive and fully customizable platform that integrates with your team’s favorite tools for a seamless and timely adoption. If you’d like to learn more about how Omni’s all-in-one HR software automates the entire end-to-end employee lifecycle, book a demo with our team today and explore the features tailored to enhance your HR experience in 2025!