Calculators

Describe a meeting in plain English — find the best time across any timezones.

Describe your flight — get arrival time, jet lag forecast, and best times to call home.

Ask any time zone question in plain English — "What time is 3pm NY in Tokyo?" Instant answer.

Convert any time between two timezones. Shareable link.

How many days, weeks, months, or years between two dates?

Find a date by adding or subtracting days, weeks, months, or years.

Find the weekday, ISO week number, and date info for any date.

Count down to any event. Updates live every second. Shareable link.

Convert between Unix epoch seconds and human-readable dates. Auto-detects milliseconds.

All leap years from 2000 to 2096 — plus a quick checker for any year.

Convert between 30+ currencies. Live rates from the European Central Bank, updated daily.