Online Stopwatch, with start alerts, lap times and sounds. Save details of your timings in a text file.

Timer online with alarm. Create one or multiple timers and start them in any order. Set a silent timer clock or choose a sound.

Online Stopwatch Time your activities. With start alerts, lap times, and alarm sound.

Create a Countdown Timer that counts down in seconds, minutes, hours and days to any date, with time zone support. It also counts …

Tools Years with Same Calendar as 2026 Customization Forms Customize this calendar–large – advanced form with more choices …

Business Days Calculator counts the number of days between two dates, with the option of excluding weekends and public holidays.

Interactive night sky map for any location. Which planets, stars, constellations, and comets are visible tonight?

Calculate moonrise and moonset times, Moon direction, as well as the altitude, distance and when the moon passes the meridian.

United Kingdom 2026 – Calendar with British holidays. Yearly calendar showing months for the year 2026. Calendars – online and …

Calculate local times for sunrises, sunsets, meridian passing, Sun distance, altitude and twilight, dusk and dawn times.