# DatesConverter

> Free date and time calculators. Calculate age, days between dates, time zones, countdown timers, and date differences. Accurate and easy to use.

Every tool and article on DatesConverter is free to use — no sign-up required. The links below are the primary, canonical resources on this site.

## Tools

- [Countdown Timer](https://datesconverter.com/tool/countdown-timer/): Create countdowns to events, deadlines, and milestones. See days, hours, minutes, and seconds remaining in real time.
- [Calendar Generator](https://datesconverter.com/tool/calendar-generator/): Generate printable calendars for any month or year. Customize start day, add holidays, and choose layout styles.
- [Zodiac Sign Calculator](https://datesconverter.com/tool/zodiac-sign-calculator/): Find your zodiac sign from your birthdate. See characteristics, compatibility, element, and ruling planet information.
- [Moon Phase Calculator](https://datesconverter.com/tool/moon-phase-calculator/): Find moon phases for any date. Current illumination, upcoming full and new moons, and monthly lunar calendar.
- [Age Calculator](https://datesconverter.com/tool/age-calculator-2/): Calculate your exact age in years, months, days, hours and minutes. Enter any birth date and target date to get a precise age breakdown instantly.
- [Date Difference Calculator](https://datesconverter.com/tool/date-difference-calculator-2/): Find the precise gap between two dates in days, weeks, months & years. Option to exclude weekends for accurate working-day calculations. Instant resu…
- [Add or Subtract Days from a Date](https://datesconverter.com/tool/add-subtract-days/): Add or subtract days, weeks, months, or years from any date. Get the exact resulting calendar date instantly — no sign-up needed.
- [Countdown Timer to a Date](https://datesconverter.com/tool/countdown-timer-2/): Free live countdown timer to any date. Enter your event or deadline and see days, hours, minutes, and seconds count down in real time. No sign-up nee…
- [Time Zone Converter](https://datesconverter.com/tool/time-zone-converter/): Convert time between any two time zones with automatic daylight saving adjustments. Supports 400+ cities and regions worldwide. Instant, accurate res…
- [Unix Timestamp Converter](https://datesconverter.com/tool/unix-timestamp-converter-2/): Convert Unix timestamps to readable dates and back. Supports seconds and milliseconds. Instant, free, works offline — no data sent anywhere.
- [Business Days Calculator](https://datesconverter.com/tool/business-days-calculator-2/): Calculate the exact number of business days between two dates, excluding weekends and any custom holidays you define. Fast, accurate, no signup neede…
- [Week Number Calculator](https://datesconverter.com/tool/week-number-calculator-2/): Find the ISO 8601 week number for any date. See the exact Monday start and Sunday end of that week. Free, instant, no signup needed.
- [Duration Calculator](https://datesconverter.com/tool/duration-calculator/): Calculate exact elapsed time between two timestamps. Get days, hours, minutes, seconds, and total conversions instantly — no sign-up needed.
- [Day of the Week Finder](https://datesconverter.com/tool/day-of-week-finder/): Find the day of the week for any date in history or the future. Instant results for any year, month, and day using proven calendar math.
- [Pregnancy Due Date Calculator](https://datesconverter.com/tool/pregnancy-due-date-calculator/): Calculate your pregnancy due date and current week from your last menstrual period or conception date. Instant results with trimester and milestone t…
- [Date Format Converter](https://datesconverter.com/tool/date-format-converter-2/): Convert dates between ISO 8601, US (MM/DD/YYYY), European (DD/MM/YYYY), and custom patterns instantly. Free date format converter with live preview.

## Articles

- [Business Number for Agencies: 7 Myths g100.us Busts](https://datesconverter.com/best-business-number-agencies-g100us/): Looking for the best business number for agencies? g100.us busts common myths with one number for calls, SMS & WhatsApp in 100+ countries, no contrac…
- [Get a US Number Without a US Address: g100.us](https://datesconverter.com/us-number-without-us-address-g100us/): Get a US number without a US address on g100.us. Calls, SMS & WhatsApp in one number, instant activation, no contracts. Start today.
- [Pre-Trip Date Checklist: Never Miss a Deadline or Visa Window Again](https://datesconverter.com/travel-date-checklist/): Use this pre-trip date checklist to track visa windows, passport expiry, time-zone date shifts, and booking deadlines before every trip.
- [A Quick Guide to Solving Everyday Date and Time Headaches](https://datesconverter.com/date-time-quick-tips/): Fix overlapping events, unclear deadlines, and time zone headaches with these fast, practical tips. No complex systems — just habits that actually wo…
- [ISO 8601 vs US vs European Date Formats: Which Should You Use?](https://datesconverter.com/date-format-comparison/): ISO 8601 vs MM/DD/YYYY vs DD/MM/YYYY: compare clarity, sorting, and international compatibility to pick the right date format for your use case.
- [The Real History of How We Got the Gregorian Calendar](https://datesconverter.com/history-of-the-calendar/): How a tiny 11-minute error in the Julian calendar snowballed into eleven lost days in 1752. The real story behind the Gregorian calendar reform.
- [Debunking 5 Myths About Calendars and How Dates Work](https://datesconverter.com/calendar-myths-debunked/): Discover 5 common calendar myths debunked — leap year rules, New Year history, time zone offsets, month arithmetic, and the Gregorian calendar's mess…
- [Your Questions About Daylight Saving Time, Answered](https://datesconverter.com/daylight-saving-faq/): Daylight Saving Time explained: why clocks change, which countries skip it, health effects of the spring shift, and why nobody has abolished it yet.
- [Counting Business Days: How Companies Actually Calculate Deadlines](https://datesconverter.com/counting-business-days/): The Gap Between "Five Business Days" and Reality Almost every operations manager has lived through some version of this moment: a client calls, frust…
- [7 Date Mistakes That Quietly Wreck Spreadsheets and Reports](https://datesconverter.com/common-date-mistakes/): Discover the 7 most common date mistakes that break spreadsheets and reports — timezone errors, text-dates, DST traps, and more — plus how to fix the…
- [Inside the Year 2038 Problem: When Unix Time Runs Out](https://datesconverter.com/year-2038-problem/): The Year 2038 Problem explained: how 32-bit Unix timestamp overflow works, which systems are still at risk, and what engineers are doing to fix it be…
- [Time Zones Explained: A Beginner's Guide to UTC, GMT and Offsets](https://datesconverter.com/time-zones-explained/): Learn how UTC, GMT, time zone offsets, and daylight saving time work together. A beginner-friendly guide to scheduling across borders without the con…
- [Why Leap Years Exist and How They Quietly Break Your Date Math](https://datesconverter.com/leap-years-explained/): Why leap years exist, how the Gregorian calendar rules work, and the real software bugs — age calculations, billing, date arithmetic — that February …
- [How to Calculate Your Exact Age Down to the Minute](https://datesconverter.com/calculate-exact-age/): Learn how to calculate your exact age down to the minute — complete years, months, days, and hours — with step-by-step math that handles leap years a…
- [Moon Phases Explained — Lunar Cycle Guide](https://datesconverter.com/moon-phases-explained-lunar-cycle/): International date format guide. Avoiding confusion between MM/DD and DD/MM, ISO 8601, and best practices.
- [Zodiac Signs — Complete Guide to Sun Signs and Dates](https://datesconverter.com/zodiac-signs-complete-guide-dates/): Business days calculation guide. Working day conventions, holiday calendars, and deadline planning for professionals.
- [Business Days Calculator — Planning Deadlines and Schedules](https://datesconverter.com/business-days-calculator-planning/): Unix timestamp guide for developers. Epoch time explained, conversion methods, timezone handling, and the 2038 problem.
- [Unix Timestamps — What They Are and How to Use Them](https://datesconverter.com/unix-timestamps-what-how-to-use/): Age calculation methods worldwide. Legal age definitions, age reckoning systems, and birthday milestone facts.
- [Date Formats Around the World — DD/MM vs MM/DD Explained](https://datesconverter.com/date-formats-around-world-explained/): Date calculation guide. How to compute days between dates, handle leap years, and understand calendar math.

## About & Policies

- [About Us](https://datesconverter.com/about-us/)
- [Contact Us](https://datesconverter.com/contact-us/)
- [Privacy Policy](https://datesconverter.com/privacy-policy/)
- [Terms of Service](https://datesconverter.com/terms-of-service/)
- [Disclaimer](https://datesconverter.com/disclaimer/)
- [Blog](https://datesconverter.com/blog/)

## Notes

- Full URL list: https://datesconverter.com/sitemap.xml
- Content is original and maintained by DatesConverter. Attribution is appreciated when cited.