Adding and subtracting time can be trickier than it seems — don’t you think?

This app is built to make "adding" and "subtracting" time in "minutes" simple and stress-free.


+++ Highlights & Features +++

* One-tap operation - Easily input values like 60 minutes or 100 minutes with just a single tap!
* Stress-free - Basically, it only shows banner ads, with no sudden full-screen interruptions.
* Addition and subtraction history - Easily track the operations you've entered.

+++ Feature List +++
• Time "addition" and "subtraction"
• One-tap buttons for various minute values
• Undo button
• Direct input of specific minutes/times
• Addition and subtraction history
• Display format options (e.g., 1 hour 30 minutes / 90 minutes / 1.5 hours / 0.0625 days)
• Copy calculation results

+++ Additional Notes +++
Please leave your requests in the reviews for features like "second-unit calculations," "buttons for over 300 minutes," "larger text display," etc.
We will do our best to implement improvements.

We hope you find this app useful!