Interval Timer

Build and run structured time based intervals using a mathematical formula type approach (GEMA, BEDMAS, PEMDAS, BODMAS).

Quick Start

1. Tap the expression editor and enter a sequence.
2. Use Work and Rest tokens to define intervals.
3. Press Start to run the timer.

Phone screen should lock awake when the timer is running.

Example Sequences

• 2x(2mWork+30sRest)
• 10mWork+5mRest+10mWork
• 3x(5x(30sWork+30sRest)+1mRest)

Controls

• Start begins or pauses.
• Lap jumps to the next step.
• Reset clears the run.

Keyboard Shortcuts

All typical keys should work including:

• 0 - 9, x, +, (, ), and BACKSPACE

In addition to the typical keys the following keys also work:

• * = multiply x
• h = hour(s)
• m or ' = minute(s)
• s or " = second(s)
• w = Work
• r = Rest
• HOME = SOL
• END = EOL
• ← or → = move left/right one caret
• CTRL + ←/→ = move left/right whole segment