Blog
Articles about how calendars, dates and holidays actually work.
Puthandu vs Ugadi: Why Tamil and Telugu New Year Fall on Different Days
Tamil Nadu and Andhra Pradesh share a border, a 60-year cycle of year names — even the same year name in 2026 — yet their new years were 26 days apart this year and will be 7 days apart in 2027. The reason is one of the oldest splits in the Indian calendar: Sun versus Moon.
Why Some Countries Weekend on Friday–Saturday Instead of Saturday–Sunday
Saturday-Sunday isn't a universal rule — it's one convention among several. Here's where the Friday-Saturday weekend comes from, why Bangladesh and the Gulf states got there by very different routes, and why a few countries have switched twice.
Why the Gregorian Calendar Replaced the Julian Calendar (and Why Britain "Lost" 11 Days)
The calendar this site runs on is only about 440 years old, and adopting it meant some countries skipped 10 or 11 days outright. Here's why the switch happened, and why it didn't happen everywhere at once.
How Time Zones Work — and Why Tomorrow Starts at a Different Moment for Everyone
Tomorrow doesn't arrive at the same instant everywhere. Here's how the world's timezone system actually works, and why a global reference point matters.
How Public Holidays Are Decided: A Look at Four Different Systems
Public holidays aren't set the same way everywhere. Here's how India, the US, the UK and the UAE each decide — and confirm — their official holidays.
Why Do Some Countries Start the Week on Sunday and Others on Monday?
The seven-day week is universal, but where it starts isn't. Here's why the US and India show Sunday first while the UK, Canada and most of the world start on Monday.