Jan 5, 2026Learn about the optical lattice clock, the most precise clock on Earth, and its scientific implications.

Jan 3, 2026Learn why the week starts on Monday according to ISO 8601 and its adoption globally.

Jan 3, 2026Discover what calendar most of the world uses, its history, and why the Gregorian calendar is the international standard.

Dec 31, 2025Explore how ancient civilizations used sundials to measure time, the origins of timekeeping, and its evolution over the centuries.

Dec 11, 2025Discover how ancient civilizations used celestial events to track time with sundials and more. Learn the origins of timekeeping!

Dec 11, 2025Discover who invented AD time and learn about the origins of the Anno Domini calendar system.

Dec 11, 2025Learn how AD years are calculated based on the Gregorian calendar, starting from the year of Jesus Christ's birth.

Oct 6, 2025Discover why Nepal's calendar is 56 years ahead of the Gregorian system, focusing on the Vikram Samvat used for official purposes.

May 12, 2025Discover why the 21st century is considered to start in 2001 instead of 2000, exploring the intricacies of our calendar system.