Time & Date
Age calculator, date difference, countdown - instant date and time math in your browser.
Accurate temporal math and planning. Calculate age, find the difference between dates, or plan meetings across time zones. These tools handle the complexity of date-time calculations locally, ensuring you always have the right information for your schedule.
Calculate your exact age in years, months, and days from your date of birth. Also shows total days lived and days until next birthday.
Calculate the exact number of days, weeks, months, and years between two dates. Runs instantly in your browser.
Convert Unix timestamps (seconds & ms) to human-readable dates and vice versa. Support ISO 8601, UTC, and local time.
Compare time across multiple time zones in real-time. Add your favorite cities and see their current time instantly.
Find the best meeting times across 2–5 timezones. Visual 24-hour grid shows working hours overlap. Runs entirely in your browser — no signup required.