# Time calculator

> Can add, subtract, multiply, and divide time

Canonical page: [https://chrome-stats.com/d/com.kdevelop.TimeCalc](https://chrome-stats.com/d/com.kdevelop.TimeCalc)

## Overview

- **ID:** `com.kdevelop.TimeCalc`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** Yutaka Kenjo
- **Category:** TOOLS
- **Downloads:** 675,644
- **Rating:** 4.67 / 5 (1,826 ratings)
- **Version:** 1.24
- **Last updated:** 2026-05-25
- **First published:** 2021-02-24
- **Publisher country:** JP
- **Size:** 50 MB
- **Data as of:** 2026-09-14
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.kdevelop.TimeCalc)
- **Website:** [https://app.k-server.info/develop/](https://app.k-server.info/develop/)
- **Privacy policy:** [https://app.k-server.info/time\_calc/privacy/](https://app.k-server.info/time_calc/privacy/)

## Description

**Time Calculator** is a versatile Chrome extension designed to simplify all your time calculations involving hours and minutes. Whether you need to add, subtract, multiply, or divide time durations, this tool streamlines the process with automatic formatting—enter numbers and ":" is inserted automatically for efficient input.

Key features include automatic calculation history tracking, allowing you to revisit past computations instantly. The memory keys let you save and manage subtotals for later use, while preset keys enable one-touch addition of frequently used time intervals like 15 or 30 minutes. An option to add or subtract 24 hours helps calculate times that cross midnight. Personalization is also at your fingertips with multiple color themes such as orange, green, cyan, pink, and black to suit your preference.

Ideal for calculating total work hours, time spent on errands, or travel durations, Time Calculator is a simple yet powerful tool that enhances productivity and accuracy in time management.

## Rankings

- #85,136 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `com.google.android.gms.permission.AD_ID`

## Review summary

Users consistently praise Time Calculator for easy time math and scheduling, with a simple UI and strong usefulness/reliability. The paid option to remove ads is valued by some. A few isolated complaints mention slowness or a less friendly feel, but there is no widespread negative feedback.

### Pros

- Time calculations and scheduling are easy and handy
- Simple, user-friendly interface
- Very useful for planning time and predicting arrivals
- Handles multiple time inputs and fluctuating schedules
- Ad-free option via purchase (ads can be removed)

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.kdevelop.TimeCalc)