One hour is the universal long interval — the standard meeting, workout, lesson and cooking stage. This 1 hour timer starts as soon as you land on the page.
An hour is the unit almost everything else is measured against. It is long enough for a complete piece of work and short enough that people will still commit to it without hesitating.
An hour is 3,600 seconds, 60 minutes, and one twenty-fourth of a day. It covers a full gym session with warm-up and cool-down, a typical washing machine cycle, a 5 kilometre walk at an easy pace, or roughly 14,000 words of reading — a substantial book chapter.
Useful when a recipe, workout plan or exam paper states the time differently:
| 1 hour in… | Value |
|---|---|
| Seconds | 3,600 |
| Minutes | 60 |
| Hours (decimal) | 1 |
| Fraction of an hour | exactly 1 hour |
| How many fit in an hour | 1 |
| How many fit in a day | 24 |
You do not need to press anything — the 1 hour began the moment this page finished loading. At zero the alarm sounds, the digits flash red and the tab title changes to a bell icon. Stop Alarm silences it; Reset starts a fresh 1 hour.
You can change the alarm sound at any point before or during the countdown — Beep, Digital, Alarm Bell, Chime, Siren and Soft Wake are all available, and each plays a short preview when selected. To use a different length, press Reset and type any duration, or pick one from the main timer page.
Need something else? Try a little shorter with the 50 minute timer or a little longer with the 90 minute timer. For a round comparison, exactly half this length is the 30 minute timer, and double it and you get the 2 hour timer.
Yes. Remaining time is calculated from the system clock rather than counted ticks, so an hour-long countdown finishes at the right moment even if the tab is hidden for most of it.
Use this timer if you mean 'one hour from now'. If you mean a specific clock time — the end of a parking session, say — set an alarm clock for that time instead, which is easier to get right.
Yes — the countdown begins as soon as the page loads, so there is nothing to press. If you would rather start it yourself, press Reset and then Start.
Yes. Pause holds the remaining time exactly where it is; Resume continues from that point and Reset returns the clock to the full 1 hour.
VClock plays your selected alarm sound on a loop, flashes the display and changes the browser tab title. Press Stop Alarm to silence it.
Completely. There is no sign-up, no download, no daily limit and no watermark — set it as many times as you like.
Switch to the VClock alarm clock to ring at a specific hour instead of counting down.
Open the Alarm Clock