Mastering the Math of Time Travel
Like Duolingo, but for Mastering the Math of Time Travel. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free during early access · No credit card · iPhone & Android

Key ideas in Mastering the Math of Time Travel
- Historical dates must be converted to a consistent decimal year format
- The month and day must be expressed as a fraction of the total year
- Different cultures and systems use different 'Year Zero' anchors
- Calculating a jump requires normalizing all dates to a single reference point
- How to convert a specific historical date into a machine-readable numerical value
- Identifying why 'zero' changes across different calendar systems
- Subtraction is the primary tool for finding temporal distance
- Conversion must happen before subtraction
- Small decimal errors in time math translate to weeks or months of drift
- Precision must be maintained until the final calculation is complete
- The correct sequence for calculating the mathematical gap between two points in time
- Mental estimation is a vital safety check for machine errors
- Negative values represent jumps into the past
- The 1752 calendar reform removed days from the timeline
- The transition from BC to AD skips the number zero
- Calendar changes and gaps
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Mastering the Math of Time Travel the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
When preparing for a jump to the year 1215, how should you format the date for the navigation computer?
Get it right to open this lesson and 87 more in the app.
Where Mastering the Math of Time Travel takes you
Ever wondered how to calculate a jump to the Jurassic or fix a paradox? Learn the math needed to navigate the fourth dimension and keep your timeline intact.
- 1
Your First Jump: Getting the Timing Right
- Calculating Your Arrival Date
- Measuring Time in Seconds vs. Centuries
- How to Read a 4D Map
- The Math of Staying in the Past
- 2
Avoiding Disasters and Paradoxes
- The Grandfather Paradox: Counting Branches
- Probability of Changing the Future
- Spotting Loops in Your Timeline
- Calculating Safe Distance from Your Past Self
- The Math of Parallel Universes
- Fixing a Broken History String
- 3
Navigating the Moving Universe
- Why the Earth Isn't Where You Left It
- Calculating Planetary Drift
- The Math of Landing on Solid Ground
- 4
Speed, Gravity, and Aging
- Why Fast Travelers Age Slower
- The Math of Gravity Wells
- Calculating Your Personal Clock Offset
- How to Sync Watches Across Eras
- Predicting Time Dilation Effects
- 5
The Science Under the Hood
- Understanding the Speed of Light Limit
- The Geometry of Spacetime
- How Wormholes Fold the Map
- The Math of Infinite Energy Requirements
5 sections · 22 units · 88 levels. Built to play, not to enroll.
You pick the voice
Mastering the Math of Time Travel is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More Math on Tomo
Algebra 1: Solving the World's Puzzles
Stop guessing and start knowing. Learn how to use letters to find missing numbers and solve real-life problems with the power of equations.
Thinking in Shapes
Stop seeing just lines and start seeing the hidden patterns that build our world. Learn to measure, build, and solve problems using the logic of shapes.
Math for Real Life
Stop wondering when you'll ever use math and start using it to solve everyday puzzles. From splitting a pizza to planning a trip, see how numbers make life easier.
Mastering 5th Grade Math
Stop feeling stuck and start solving problems like a pro. Learn the tricks to handle big numbers and shapes so you can tackle real-world challenges with confidence.
The Balance of Truth: Mastering Equations
Move beyond basic arithmetic to see how equations act as scales for the universe. Learn the logic of keeping things equal while hunting for the hidden values that make everything click.
Pre-calculus Basics
Bridge the gap between algebra and calculus by mastering the behavior of shapes and numbers. Learn how to predict patterns and understand the math of change.
Start Mastering the Math of Time Travel today.
Download Tomo, search Mastering the Math of Time Travel, and play your first lesson in under a minute.