What hour aligns most of the countries in the same day?
Have you ever asked yourself, what hour aligns most of the countries in the same day? Well, I did.
Let's break down the problem first. We all understand the concept of time zones, which divide the world into different regions where local times differ, typically by one-hour increments. Because of this, some countries are ahead of you
in time, meaning their clocks show a later time and they might even be in the next calendar day. Conversely, some countries are behind you, with their clocks showing an earlier time, often still in the previous calendar day. This
phenomenon creates a situation where, at any given moment, different parts of the world are experiencing different times and sometimes even different days.
And instantly, with this in mind, the question "What hour aligns most of the countries in the same day?" was constantly on my mind, and I was anxious to find the answer. I tried googling for hours on end just to get the question, and found nothing direct. I found a post on Quora, but it didn't respond what I wanted.
So, I decided to do it myself.
First things first, I would need the data that contains all the time zones, the countries that have Daylight Saving Time, and their respective months.
Steps
- Obtain all timezones
- Get and align all daylight saving time
- Add the calculus and a custom time
Iframe | * Prefer open in a new tab below.
Open in a new tab
Based on the data, at the interval of 10:00 to 10h59 UTC, most countries align within the same calendar day. This hour represents a peak moment of global synchronization.
Here’s a list of the sovereign states and their respective time zones where this alignment doesn't occur:
Hour used as example: 10h30 am
Yesterday
United States (American Samoa, UTC-11:00): 23:30New Zealand (Niue, UTC-11:00): 23:30
