About Epoch Calculator

Epoch Calculator is a free, modern toolkit for working across time zones and doing everyday date math. Every tool runs entirely in your browser — there is no sign-up, no account, and no server-side tracking of the values you enter.

Not to be confused with timeBro

Epoch Calculator is a set of free time and date calculators. It is not affiliated with timeBro (now Memtime), which is a paid automatic time-tracking desktop app for freelancers and agencies. The two products are unrelated.

Looking for timeBro (the time-tracking app)? That's a different product — visit Memtime.com.

What Epoch Calculator is

Epoch Calculator is a collection of focused tools for anyone who works across time zones or needs quick answers to date and time questions. All date and timezone math uses the IANA time zone database via Luxon, so daylight saving transitions are handled correctly for every zone — past, present, and future.

The site is built to be fast, keyboard-friendly, and readable on any device. Saved preferences (like your World Clock cities) live in your browser's local storage only.

The tools

• World Clock

  Track the current time across any number of cities, live-ticking and DST-aware.

• Timezone Converter

  Translate a specific moment between any two IANA time zones.

• Meeting Planner

  Visualize business-hour overlap across teams in different zones.

• Date Duration Calculator

  Count years, months, weeks, days — and weekdays — between two dates.

• Countdown Timer

  Live countdown to any target moment, with a shareable URL.

• Age Calculator

  Exact age in years, months, days — plus zodiac and next-birthday countdown.

• Unix Timestamp Converter

  Epoch time to human-readable date. Auto-detects seconds vs. milliseconds.

• Time Difference Calculator

  Find the hour and minute gap between two cities or time zones right now.

• Days Until

  Count down to any date — next holiday, deadline, birthday, or custom event.

Feedback

Found a bug or have an idea? The site is deliberately simple, but we'd rather hear about a rough edge than leave it there. You can reach out via the links in the footer.