Start from the question you actually have
ChronoPulse is a small set of free tools for time and chance. If you already know the length, open a timer page that is set to it: one minute through two hours, including the lengths people search for most often, such as 5, 10, 15, and 30 minutes. The online timer explains how the alarm works and links every preset. The dial is ready. You press Start. You do not build an account to time a meeting.
If you do not know the length yet, you want a stopwatch. It counts up from zero, keeps laps, and still moves if the tab is in the background, because it reads the clock instead of hoping a tick never stalls. If the question is a calendar day, “how long until New Year” or “how long until Halloween,” that is a countdown timer, not a pile of minutes. If the question is “how many days are between these two dates,” the date page does the arithmetic and leaves the clock alone.
What runs in the browser
The countdown stores a finish time when you press Start and compares the device clock to it. That is why a background tab on an awake computer does not freeze. Sleep still wins. Close the laptop and there is no sound. There is no system notification and no account. Reload a timer and it returns to the length written on that page. A coin flip uses the browser’s random number generator and shows heads or tails. It is a fair toss for a low-stakes choice, not a gambling product.
Dates are counted as calendar days. You can include the end date or not, and you can see how many of those days are weekdays, Monday through Friday. Federal holidays are not removed, because “business days” means different things in different contracts. The page says that next to the result. Adding or subtracting a number of days gives you the landing date in a US calendar format, month, day, and year.
What this English site does not try to be
These pages are the tools that make sense for a US audience: timers, a stopwatch, countdowns to New Year and Halloween, a coin flip, and days between dates. French public holidays, school calendars, and similar local pages stay on the French site. Unit conversions and general calculators are a different product. Nothing here redirects you based on your browser language. The URL is the language. The header link is the way across.
Use a preset when you want the same length tomorrow without typing it. Use the stopwatch when you are still learning the length. Use the countdown when the target is a moment on the calendar. Say what the chime means before you start, or it is only a noise. None of this is a medical device, an exam proctor, or a substitute for an appliance’s own timer when safety depends on it.
- Known length: open that timer page.
- Unknown length: stopwatch, then pick a preset later.
- A date: countdown, or days between dates if you only need the count.
- A coin toss: one flip, then accept it.