Blog
Articles about time zones, calendars, ISO standards, Unix time, and date calculations.
Latitude, Longitude & Time — How Coordinates Define Time Zones
Every point on Earth has a unique time based on its longitude. Learn how geographic coordinates connect to time zones and why it matters.
From Sundials to Atomic Clocks — A Brief History of Measuring Time
How humanity went from watching shadows to splitting atoms to tell time. A 5,000-year journey.
25 Surprising Facts About Time Zones and Daylight Saving Time
From countries with 30-minute offsets to the island that skipped a day — discover the strangest facts about how the world tells time.
Why Do We Change Clocks? The Real Story Behind Daylight Saving Time
DST was invented to save coal in WWI. Over a century later, most of the world has abandoned it. Here's why some still hold on.
Leap Seconds Explained — Why Clocks Sometimes Get an Extra Second
What are leap seconds, why do they exist, how do they affect technology, and why are they being abolished by 2035?
What Is Unix Time? The Epoch Explained
Learn how Unix timestamps work, what the epoch is, how computers track time, and why the Year 2038 problem matters.
The History of Time Zones — How the World Agreed on Time
From railroad time to UTC and the IANA database: the fascinating history of how time zones were created and standardized worldwide.
Calendars Around the World — From Gregorian to Hijri
Explore the major calendar systems used worldwide: Gregorian, Islamic Hijri, Hebrew, Chinese, Hindu, Ethiopian, Persian, and Buddhist calendars.
Understanding ISO 8601 — The International Date & Time Standard
Learn what ISO 8601 is, why it exists, how date and time formats work, and how week numbering is defined in this international standard.