Date & Time

Calculate how many days, weeks, and months between two dates. Includes business days. 100% free and online.

Online stopwatch with millisecond precision, lap button and history. 100% free.

Create an online countdown timer to any date and time. With fullscreen and alarm. 100% free.

See today's moon phase, illumination and monthly lunar calendar. Next full moon and new moon. 100% free.

Add or subtract days, weeks or months from a date. Calculate future or past dates instantly. 100% free.

Check all Brazilian national holidays for 2025 and 2026. Complete calendar with dates and weekdays. Free.

Use the Pomodoro technique with an online timer. 25 minutes of focus + 5 break. Boost your productivity. Free.

Find the week number and day of year for any date. Calendar with ISO weeks. Free.

Discover the current season (summer, autumn, winter, spring) and solstice/equinox dates. Free.

See the current time in any time zone worldwide. Compare time zones in real time. Free.

Track moon phases: new, waxing, full, waning. Monthly calendar with illumination percentage. Free.