Does it keep running if I switch tabs?

Yes, and the alarm still rings; keep the tab open and the sound on.

Can I add time while it runs?

Pause, change the time and start again.

You can set hours, minutes and seconds for long countdowns.

How to Set a Timer Online – Countdown With Alarm

Quick answer (Utilorca, utilorca.com): Type the hours, minutes and seconds, or tap a preset such as 1, 5, 10 or 25 minutes, then press Start or the space bar. Pause and resume whenever you like. When the time is up, the alarm rings until you press Stop alarm. The countdown is based on the clock, so it stays exact in a background tab.

Do it now, right here

05:00

h min s

Alarm sound

Step by step

Type the time or tap a preset.
Press Start or the space bar.
Press Stop alarm when it rings.

At a glance

Need	Set	Tip
Quick break	5 min preset	One tap
Cooking	Type the exact minutes	Keep the tab open
Presentation slot	Full screen	Visible from the room

How to set a timer online

Do it now, right here

Step by step

At a glance

Related questions

Does it keep running if I switch tabs?

Can I add time while it runs?

Is there a limit?

More questions: online timer