From time to time, notes about various amazing observations regarding calendars are shared on social media, and sometimes even fake news are shared. Social media posts stating that various incidents happen once in 823 years have been exchanged before on various occasions.
In this way, our Fact crescendo team investigation revealed that the social media posts claiming that the dates of the month of February will be adjusted after 823 years, is a completely false note.
Social Media Posts
In early 2026, the same misleading claim has resurfaced once again on social media platforms, including Facebook and TikTok. Posts circulating this year repeat the familiar narrative that February displaying four occurrences of each weekday is a rare phenomenon that happens only once every 823 years.
Claims from Previous Years
A social media post shared back in 2021 is being reshared now, stating that in the month of February 2021, there were four Mondays, four Tuesdays, four Wednesdays, four Thursdays, four Fridays, four Saturdays, and four Sundays. The note further mentioned that it would come again after 823 years.
The related Facebook post is as follows.
Another Facebook post is as follows.
Many people were interested in these facts and believed them to be true. This was shared again in 2022, 2023 and has been shared again in this year as well.
In January 2023, this fake news was published in the ‘Divaina’ newspaper as follows.
TikTok | Archived | Divaina | Archived
The same claim is being shared this year as well.
Fact Check
To find out about this, we looked at how the dates of the February 2021 calendar are arranged. The calendar is as follows.
According to the calendar of the month of February 2021, we found that the 7 days of the week are 4 days each. We investigated further to check whether a month of February will come after 823 years as mentioned in these posts.
According to our investigation, it appears that every day of the week has come 4 times during the month in 2022 as well. In most of the years, the seven days of the week is used 4 times during the month.
There are 28 days in February every year except for leap years which have 29 days. Accordingly, every year which is not a leap year every day of the week comes 4 times within the month.
Here is an explanation about the leap year. The recent leap year which appeared was 2024.
We then checked the previous and upcoming February months that start on a Monday and end 28 days later on a Sunday, as indicated in the social media posts. Here we noticed that it is not a phenomenon that happens once in eight hundred and twenty-three years.
As stated above, we have seen that this will happen next in the year 2027. This has also happened before in 2012 and 2016. From the year 2010 to the year 2100, here is a post showing the days that fall on Mondays in the month of February. During that period, we get to see 14 such cases.
False posts have been published in many parts of the world before and here is an investigation about the facts.
Claim Reshared in 2026
[Updated on January 7, 2026]
In the 2026 version, posts typically highlight that February starts on a Sunday and ends on a Saturday, implying that this alignment is exceptionally rare. However, calendar data shows that this configuration is not unusual and follows a predictable cycle.
In fact, February 2026 is a non-leap year February with 28 days, which means each weekday naturally appears exactly four times. This is a normal feature of every non-leap year February, not a once-in-823-years phenomenon.
Between the years 1900 and 2100, there are multiple instances of February starting on a Sunday and ending on a Saturday. For example, this alignment occurred in 1987, 1998, and 2015, and appears again in 2026. This shows that the pattern follows a regular calendar cycle and is not a rare event that happens once every 823 years.
Conclusion
The claim that February having four occurrences of each weekday happens only once every 823 years is false. This pattern occurs in every non-leap year February, which has 28 days.
In 2026, February starts on a Sunday and ends on a Saturday, resulting in four of each weekday. However, this configuration is not rare and has occurred many times before, including in 1987, 1998, and 2015, and will continue to repeat as part of the normal Gregorian calendar cycle.
Therefore, while February 2026 does contain four occurrences of each weekday, the “823 years” claim is false and unsupported by calendar data.
Title:Will the dates be adjusted again this time in February after 823 years?
Fact Check By: Fact Crescendo TeamResult: False
