When Is National Sel Day?

The internet history of Sel Day

26th of March is National Sel Day

  First detected on the 27th of March 2020

  151 tweets


Is It Sel Day Today?

It's Sel day on the 26th of March.

The most recent detection of references to Sel Day was 2 months, 4 weeks ago.

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up on the 26th of March. In total we detected 68 total unique days being shared such as Ranboo Day which had 5,184 people talking about it, or Medal Of Honor Day having 1,138 tweets.


How Is The Date For Sel Day Calculated?

The day shown for 'National Sel Day' is based off how much chitter-chatter and buzz there was on March 26, 2021 across social media making references to 'Sel Day'. Our algorithms examine all of the references to National Days across social media and updates whatnationaldayisit.com hourly, with our homepage displaying the current national day, including others such as: Spinach, Show Your Boobs or Puppy Day. This crowdsourcing of data method to assess the National Sel Day date is used as opposed to being connected with any Government sacntioned lists :D Hurrah for democracy by concensus!


I'd Like To Promote National Sel Day

We've put together the following resources full of nifty tips on how to increase the reach of Sel Day. The resources include: graphs, badges, and resources on what steps to take to boost Sel Day's visibility.

Can I Register Sel Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Sel day". We only aim to programatically reflect what 'National Day' it is based of what The Internet Says It Is. We believe this is much more fun as it reflects the nature of how the most amusing / interesting national days are often created organically and grow based off popular social trends and sharing, as such we don't add new days to our database unless they are organically observed on social media.



Is it National Sel Day Everywhere?

Yes? No.. Sort of | Maybe ¯\_(ツ)_/¯

What's really intersting is how whilst some National Days like National Daughters Day are seemingly celebrated internationally irrespective of geography, some very popular days (That often become the No. 1 National Day on our homepage) are in fact locally very specific and are offical holidays celebrated on a Country's national calendar. Take National Rambutan Day for instance, Rambutan is a popular Souteast Asian fruit and not seen so much in the UK, Europe or the USA. Some regionally specific trends subsequently become immensely popular internationally and worldwide, partly fuelled by widely shared 'National Days', National Pabebe Wave Day being one such example.


We're now tracking the sentiment around every mention of Sel day to show how people feel about Sel. See if people like Sel here.
We're detecting how Sel affects other things more widely than just being a celebrated day. See how Sel affects company share prices.


Hang On, It Was National Sel Day Already This Year..!?

Yes, this is strangely enough entirely possible. The date shown for National Sel Day can change, if for instance several hundred people tweeted about Sel Day in early April, then in May a few thousand people tweeted about Sel day, then the date shown for National Sel Day, could come up twice :D

We have also detected mentions of Sel day on;



Get The Badge

National Sel Day

It's Sel Day
On March 26th


WhatNationalDayIsIt's Daily Day Widget

Get our 'daily day' widget. Copy the code below to show today's day automatically on your site.

<iframe src="https://whatnationaldayisit.com/today_badge/"  height = "300px"    frameborder="0" scrolling="no"<  /iframe>


National Sel Day, on the 26th of March

Other Days

National Dog Day
National Donut Day
National Puppy Day
National Girlfriend Day
National Best-Friend Day
National Single Day
National Daughter Day
National Boyfriend Day
National Pug Day
National Daughters Day
National Pet Day
National Pancake Day
National Hug Day
National Hot-Dog Day


For any media or sponsorship queries, please contact info@whatnationaldayisit.com
For people who wish to promote National Sel Day, we've put together the following resources.
See also: How does Sel affect the share price of Apple, Facebook, Microsoft?
This Site Uses Cookies. Read our privacy policy here.