120 Minute Timer
Free online 120 minute timer. Two hour countdown with alarm.
⏱️ 120 Minute Timer: Start a free 120-minute countdown timer instantly — no downloads, no sign-up. Just click Start.
Why use a 120-minute timer?
Two hours is the upper bound of single-block focus for most knowledge workers. Useful for theatrical productions, exam blocks, and deliberate practice with a coach.
What people use a 120-minute timer for
Theatrical production
Average movie or play length.
Exam block
Many standardized exam sections run 90-120 minutes.
Deliberate practice
Anders Ericsson found 90-120 min the daily limit for elite-level practice intensity.
Long-distance training
2-hour training sessions for marathon, cycling, swimming preparation.
Tabletop RPG session
D&D, Pathfinder etc run typically in 2-4 hour sessions.
The 120-minute interval, in context
Two hours is the longest block where productivity research consistently shows quality output. Beyond this, expert practice splits into separate blocks separated by full breaks (Ericsson's 'deliberate practice' research).
Doubles a 60-minute hour; matches one-third of a typical 6-hour workday.
About the 120 Minute Timer
Free online 120 minute timer. Two hour countdown with alarm.
Related
Frequently asked questions
Why use a 120-minute timer specifically?
120-minute sessions are for extended-focus work, multi-section practice exams, slow-cook recipes, and long meditation retreats. For very long timers, keep the page in the foreground tab — modern browsers may throttle background scripts after extended periods.
Does the 120-minute timer keep accurate time?
For 120-minute intervals, accuracy is typically within 1 second across the full window when the tab stays open. If you minimize the browser for hours, some operating systems aggressively throttle background tabs — keep the tab visible if exact end-time matters for cooking or testing.
Should I keep this timer running for a full 120-minute session?
Yes — keep the tab open and visible for the full 120-minute. Modern browsers throttle background tabs aggressively, especially on battery-powered devices, which can delay the alarm or cause inaccurate end times. Pin the tab if you need to switch away briefly.
What happens when the 120-minute timer reaches zero?
An audible alarm plays and the page flashes a completion indicator. After a 120-minute session, you have probably switched contexts entirely — make sure your device is on a surface where you can hear it, since the alarm is your only return signal.