Time Configuration Area
Online Timer - 3 Hours
3-Hour Online Countdown Timer - The Ultimate Tool for Marathon Focus and Large Projects
The 3-hour countdown timer is the ultimate tool for marathon-style focused work. Suitable for large projects, important research, or creative endeavors requiring sustained deep engagement, helping you achieve true deep work state.
Core Features
- Marathon focus tool
- Complete time for large projects
- Guarantees deep work state
- Time investment for significant results
Recommended Uses:Large projects, important research, deep creation, marathon learning, professional development
Pre-designed Timer
Pre-designed timers suitable for Pomodoro, meditation, study, work, and other scenarios. No download needed, ready to use upon opening, with all settings saved locally.
Custom30 Seconds30-second online timer - for quick breaks, short exercises, and brief focus sessions -Free online timer with full-screen display and customizable settings1 Minute1-minute online timer - ideal for quick tasks, short meditation, and time management -Free online timer with full-screen display and customizable settings3 Minutes3-minute online timer - for short focus, quick breaks, and simple exercises -Free online timer with full-screen display and customizable settings5 Minutes5-minute online timer - for Pomodoro breaks, short meditation, and quick tasks -Free online timer with full-screen display and customizable settings10 Minutes10-minute online timer - suitable for short work, meditation, and focused learning -Free online timer with full-screen display and customizable settings15 Minutes15-minute online timer - perfect for focused study, work tasks, and meditation -Free online timer with full-screen display and customizable settings20 Minutes20-minute online timer - suitable for focused work, study periods, and deep thinking -Free online timer with full-screen display and customizable settings25 Minutes25-minute online timer - classic Pomodoro duration to boost productivity and focus -Free online timer with full-screen display and customizable settings30 Minutes30-minute online timer - for medium-length work, study, and deep focus -Free online timer with full-screen display and customizable settings45 Minutes45-minute online timer - for extended focus, deep work, and learning tasks -Free online timer with full-screen display and customizable settings1 Hour1-hour online timer - suitable for long work sessions, deep learning, and focused tasks -Free online timer with full-screen display and customizable settings2 Hours2-hour online timer - ideal for deep work, long study sessions, and focused projects -Free online timer with full-screen display and customizable settings3 Hours3-hour online timer - suitable for deep focus, large projects, and long work sessions -Free online timer with full-screen display and customizable settings
What is an Online Timer?
This online timer consists of three parts:
- 1. Timer display: shows the timer's current time
- 2. Timer control panel: controls start, pause, reset, continue functions
- 3. Timer settings panel: configure timer duration, display format, font, and scale
When the mouse hovers over the timer display area, the control panel will briefly appear. If there is no operation for a period, the control panel will disappear to reduce user distraction
How to Use the Online Timer
- 1. Click the Settings button in the control panel to slide out the timer setup panel from the right
- 2. Timer duration supports settings for hours, minutes, and seconds, with a maximum of one day, default is 5 minutes
- 3. The timer supports four formats (hours, minutes, seconds, milliseconds) in various arrangements, default is (hours, minutes, seconds)
- 4. The timer supports multiple fonts, with new fonts to be added later, default is Inter font
- 5. Users can choose whether to display time unit labels, default is to show
- 6. Users can adjust the scale of the timer
- 7. All configurations of the timer are stored in the current browser for convenience in next use