This is our day guide for Monday December 21st 2026 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?
Holidays on December 21st 2026
Public sector only
Macau: Compensatory rest day for Macao S.A.R. Establishment Day
Sovereignty over Macau was transferred from Portugal to China on December 20th 1999
São Tomé and Príncipe: São Tomé Day
Commemorates the arrival of the first Europeans to São Tomé on December 21st 1471.December 20th 2026 | Go to Today | December 22nd 2026
| Choose a Day |
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| General Information for December 21st 2026 | |
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| There are 2 public holidays today. | |
| Day 355 of 2026 | |
| 10 days left in 2026 | |
| Week 52 of the year | |
| On this Day in History | |
| 1970 - Elvis visits the White House for a meeting with President Nixon, at which he asked (unsuccessfully) to be made an undercover narcotics police officer. | |
| 1968 - The Apollo 8 mission is launched. | |
| 1940 - US musician Frank Zappa is born (d. 1993). | |
| Every year - Today is the Winter Solstice, signifying the official beginning of Winter. |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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