When Is National Sista Day?


National Sista Day is on the 8th of August with 347 tweets.

More on Sista Day below.



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About Sista Day

Is It Sista Day Today?

It's Sista day on the 8th of August.

Sista Day' is by our calculation on: August the 8th. The first time we detected Sista Day was the 2nd of August 2015 and the most recent detection of references to Sista Day was 4 months, 1 week ago.

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

There were many celebrations relating to national holdiays written about on social media that our algorithms picked up, on the 8th of August. In total we detected 97 total unique days being shared such as Sister Day which had 5,274 people talking about it, or Sisters Day having 3,036 tweets. A random sample of which are shown below.


National days on the 8th of August

National Sista Day, on the 8th of August

How Is The Date For Sista Day Calculated?

The day shown for 'National Sista Day' is based off how much chitter-chatter and buzz there was on Aug. 8, 2016 across social media making references to 'Sista 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: Cat, Friendship or Dollar Day. This crowdsourcing of data method to assess the National Sista 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 Sista Day

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

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National Sista Day

It's Sista Day
On August 8th

Can I Register Sista Day?

We don't have an international authority or governmental remit to declare any officially celebrated "national Sista 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 Sista 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.

teenagers sharing national days on social media

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

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

We have also detected mentions of Sista day on;



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For people who wish to promote National Sista Day, we've put together the following resources.
See also: How does Sista affect the share price of Apple, Facebook, Microsoft?
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