Time & Duration Calculator

Name: Time & Duration Calculator
Author: 3JStudio

Live3JStudio20 apps · 20.9K installsToolsFree · contains adsIn-app purchases: $1.39 per itemcom.jstudio3.calculator.time

Easy Time & Duration Calculator. Add, subtract, and calculate time intervals.

Alert me ★ Watch Open in Play ↗

Total installs: 392
Installs / day: 0
Rating: —★
Released: 27 Feb 2026
Last update: 11 Oct 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

5 changesFull history

12 Oct 2026 before
Update date
24 Jun 202611 Oct 2026
12 Oct 2026 before
Minimum Android
6.07.0
12 Oct 2026 before
Version
1.4.1 → 1.5.0
12 Oct 2026 before
In-app prices
—$1.39 per item
12 Oct 2026 before
What's new
What's New in v1.3.1: • Fixed an issue where the calculation history UI was obscured by the ad banner. • Fixed an issue where ads were not displaying correctly.—

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

Shares data with third parties Device or other IDs
No data collected
Data is encrypted in transit
No way to ask for data deletion

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

9 in 3 groups

4 Sensitive2 Notable3 Routine

What this app can do with your phone

Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

OtherNotable5

Access to miscellaneous device features that don't fit other categories

Temporarily turn off your screen lock, for example to show an incoming calldisable your screen lock · DISABLE_KEYGUARD
Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE

Read more · all 9 permissions Show less

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Download

Full description

Calculate time as easily as numbers! Time Calculator is the ultimate tool for anyone needing to manage durations, intervals, and clock times. Say goodbye to complex mental math and confusing decimal conversions. - Intuitive Time Input: Input hours, minutes, and seconds directly. - Powerful Time Arithmetic: Add, subtract, multiply, or divide time values with ease. - Precise Time Intervals: Find the gap between two clock times instantly. - Smart Clock Prediction: See the resulting clock time automatically. - Automatic Unit Conversion: View results in H, M, S, or D formats simultaneously. - History & Clipboard: Access previous calculations and copy results. - Real-time "NOW" Button: Insert the current time instantly. - Premium Design: Clean interface with full Dark Mode support.

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