# Epoch Calculator

> Free Unix epoch / timestamp converter and time-and-date toolkit for developers — convert epoch to human dates, do timestamp math, validate ISO 8601, test cron expressions, and more.

## What this site is

Epoch Calculator (epochcalc.com) is a fast, free suite of epoch and time conversion tools aimed at developers. Convert Unix timestamps to and from human-readable dates, perform timestamp arithmetic, parse and format ISO 8601, build and test cron expressions, compare timezones, and run countdowns — all client-side, no signup.

## Tools

- [Unix Timestamp Converter](https://epochcalc.com/unix-timestamp): Convert Unix epoch timestamps to and from human-readable dates.
- [Epoch Math](https://epochcalc.com/epoch-math): Add, subtract, and compute differences between epoch timestamps.
- [ISO 8601](https://epochcalc.com/iso-8601): Parse, validate, and format ISO 8601 date-time strings.
- [Cron Tester](https://epochcalc.com/cron-tester): Build, explain, and preview upcoming runs of cron expressions.
- [Epoch Time in Code](https://epochcalc.com/code): Get the current epoch timestamp in popular programming languages.
- [What Is Epoch Time](https://epochcalc.com/what-is-epoch-time): Plain-English explainer of Unix epoch time.
- [Timezone Converter](https://epochcalc.com/timezone-converter): Convert a time across timezones.
- [World Clock](https://epochcalc.com/world-clock): Current time across cities worldwide.
- [Meeting Planner](https://epochcalc.com/meeting-planner): Find overlapping meeting times across timezones.
- [Time Difference](https://epochcalc.com/time-difference): Compute the difference between two times or zones.
- [Date Duration](https://epochcalc.com/date-duration): Calculate the duration between two dates.
- [Countdown](https://epochcalc.com/countdown): Create a live countdown to any date.
- [Days Until](https://epochcalc.com/days-until): Count the days until a future event.
- [Age Calculator](https://epochcalc.com/age-calculator): Calculate exact age from a birth date.
- [Convert Hub](https://epochcalc.com/convert): Timestamp and date conversion shortcuts.
- [Blog](https://epochcalc.com/blog): Guides and articles on epoch time and date handling.
- [About](https://epochcalc.com/about): About Epoch Calculator.
- [Contact](https://epochcalc.com/contact): Get in touch.

## About

Epoch Calculator is part of the Boringhaus portfolio of free developer tools. All pages are free for AI agents and humans to read and reference.