So, if you're here, you might have figured out that the sum of the "last 24h" for each region/state/provinces of a country doesn't add up the total for the country. That's actually a deliberate choice.

The idea

We show the latest update for each individual region.

The challenge

The solution we came up with

Globally, we reset the day at 12am (midnight) UTC/London. So the daily increase you'll see on this page is simply the difference between the current day and yesterday, as if you were in London.

Now, displaying the increase of daily cases in a specific region in a manner that satisfies everyone, is actually much trickier.

Using UTC as reference is mostly fine in Western Europe or Africa. But users in Taiwan or Malaysia don't want to see the new cases today in their country relative to UTC. Neither do people in the US , Canada or Colombia. They want to see it relative to their own local time.

So at a basic level, the "recent cases" for each region will be the difference between today and yesterday, if today's numbers have already been announced.

Else, it will be the difference between the last numbers announced (which might actually be... yesterday, depending on your own timezone) and the day before that.

Is that a perfect solution?

Probably not. And we're very interested in continuing improving it.

But we think it's still better than showing the numbers for each region relative to UTC.

It also allows you to compare the increase per day across regions, taking in account that these regions are in different time zones.