Guides, tips and explanations
A practical, section-by-section checklist for travelers to track passport validity, visa entry windows, time-zone date shifts, and booking deadlines — so nothing slips through the…
Read more →Overlapping meetings, vague deadlines, time zone chaos — date and time confusion is a daily drain. Here are fast, practical fixes that actually stick, no elaborate system required.
Read more →ISO 8601, US, and European date formats each have a loyal following — but only one sorts reliably, stays unambiguous across borders, and plays nicely with software systems. Here's…
Read more →Going to bed on September 2nd and waking on September 14th — that's what happened in England in 1752. The story of how Julius Caesar's small math error led to eleven vanished days…
Read more →Think you understand how calendars and dates work? From leap year exceptions most people miss to the chaotic global adoption of the Gregorian calendar, here are five surprisingly …
Read more →Why do clocks change twice a year, who actually observes DST, and is it really bad for your health? Here are honest, researched answers to the questions people actually search for…
Read more →Legal filings, shipping promises, and financial settlements all hinge on correct business day counts — but the real challenge isn't the math, it's knowing which holidays count and…
Read more →From ambiguous two-digit years to silent timezone mismatches, these seven date formatting and calculation errors are responsible for more broken reports than most people realize —…
Read more →On January 19, 2038, billions of 32-bit Unix timestamps will overflow and roll back to 1901. We dig into exactly which systems are exposed, what the Linux kernel did to address it…
Read more →Ever tried to schedule a meeting across countries and ended up accidentally booking someone at midnight? This plain-English guide explains how UTC, GMT, offsets, and daylight savi…
Read more →The Earth takes 365.2422 days to orbit the sun, and that fractional leftover has been quietly breaking calendars — and software — for centuries. Here is why leap years exist, how …
Read more →Simple year subtraction gives you an approximate age — often wrong by months. Here's the step-by-step method to calculate your exact age in years, months, days, and even minutes, …
Read more →How Moon Phases Work The Moon does not generate its own light — it reflects sunlight. The changing shapes we see (moon phases) are caused by the Moon orbiting Earth, which changes…
Read more →What Zodiac Signs Actually Represent Zodiac signs are based on the apparent path of the Sun through the sky over the course of a year — called the ecliptic. Ancient astronomers di…
Read more →What Counts as a Business Day A business day (also called a working day) is any day when normal commercial operations are conducted — typically Monday through Friday, excluding pu…
Read more →What Unix Timestamps Are and Why They Matter A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — a moment known as the Unix epoch. Ri…
Read more →Why Date Formats Cause So Much Confusion The date 03/04/2026 means March 4th in the United States, April 3rd in Europe, and is ambiguous to anyone dealing with international docum…
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