305 seconds
Start the countdown for 305 seconds and calmly go about your business. At the end, a signal will sound that will not let you miss the end of the countdown.
Full-screen mode unfolds in one click, allowing you to clearly observe the passage of seconds and not be distracted by other details.
If you want to see how many minutes are in 305 seconds, the built-in converter will do it right away, without manual counting.
An online 305 seconds timer is convenient for controlling small intervals: short workouts, meditations, speed checks, and brief breaks. Starts with a single click and keeps counting even when you switch tabs.
In other units:
305 seconds equals 5 minutes 5 seconds.
No. The 305 seconds timer runs in the browser — on phone, tablet, or computer. No apps to install, no sign-up needed.
Yes, the countdown continues even when you switch tabs. The remaining time is also shown in the browser tab title, so you won't miss the end.
Yes, settings let you pick different sounds and adjust the volume. You can also mute it entirely.
Yes, there's a full-screen mode — handy for presentations, classes, workouts, and group sessions.
The timer uses the device's system clock and stays accurate even on long intervals. Countdown precision is to the second.
