# TCalc: Time & Hours Calculator > Time calculator & time converter: hours, dates, Unix & military time, timecode Canonical page: [https://chrome-stats.com/d/it.tcalc.calculator](https://chrome-stats.com/d/it.tcalc.calculator) ## Overview - **ID:** `it.tcalc.calculator` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** AsioSoft - **Category:** PRODUCTIVITY - **Downloads:** 29 - **Version:** 1.4.5 - **Last updated:** 2026-08-17 - **First published:** 2026-08-04 - **Publisher country:** CZ - **Size:** 27 MB - **Data as of:** 2026-09-11 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=it.tcalc.calculator) - **Website:** [https://tcalc.it](https://tcalc.it/) - **Privacy policy:** [https://tcalc.it/privacy](https://tcalc.it/privacy) ## Description TCalc is a time calculator and time converter that actually understands time. Add and subtract hours and minutes, multiply durations, get the difference between clock times, add working days to a date, and do frame-accurate SMPTE timecode math — all in one calculator.

Type it like you say it:
• 7h 45m × 5 = 38h 45m
• 17:30 − 9:00 − 45m = 7h 45m
• NOW + 3d 4h = your deadline, done
• 01:00:00:00 + 00:00:10:12 (24 fps) = 01:00:10:12

WHO IT'S FOR
• Freelancers & HR — add up timesheets, decimal hours and work hours in seconds
• Video editors — SMPTE timecode calculator with 24/25/30/60 fps support
• Developers — Unix epoch, ISO 8601 and duration conversions
• Pilots — Zulu (UTC) time, fuel reserves and decimal logbook hours
• Truckers & nurses — duty time, drive limits and shift math
• Everyone — how long until my flight? What time is 6h 30m from now?

TIME CONVERTER — TIMES & DATES
• Live converter widgets: the current time in 24h, 12h, military, Zulu (UTC), ISO and Unix at once — on your home screen or in the app
• Unix timestamp → date & time, and back (1736861234 → Jan 14, 2026)
• Decimal hours for payroll & invoicing (7h 30m → 7.5h)
• Military ↔ standard time (17:30 ↔ 5:30 PM)
• Durations to minutes, seconds, days or frames at any fps
• Date & time to ISO 8601, Zulu (UTC) or your local format

FEATURES
• Natural input: mix durations (2h 30m), clock times (17:30) and dates
• 8 profession keypads: Everyday, Film, Military, Aviation, Developers, HR, Accounting and Logistics
• Time & date difference calculator with DST-aware option
• Duration formats: compact, hours, minutes, seconds, days or timecode
• One-tap converters: decimal hours, military time, Unix timestamp, timecode
• Custom calculator keys — save your own shortcuts like Work Day or Sprint
• Home-screen widgets: live multi-format clock and a one-tap quick calculator
• Calculation history with free cloud sync when you sign in
• Works offline — the calculator runs entirely on your device
• Dark, native Material design built for one-hand use

FAIR PRICING
The calculator is free — every unit, every format, no account needed. Pro unlocks all profession keypads and unlimited custom buttons for a single one-time purchase. No subscription, no recurring charges, and everything you buy keeps working offline.

Also available in any browser at tcalc.it — one account, same calculator everywhere.

Time math is everywhere: timesheets, overtime, edit timelines, flight plans, cooking, workouts. Stop converting minutes in your head — type it like you say it and let TCalc do the rest. ## Rankings - #2,458,168 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.INTERNET` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.android.alarm.permission.SET_ALARM` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.providers.gsf.permission.READ_GSERVICES` - `it.tcalc.calculator.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [TimeCalc: Time Calculator](https://chrome-stats.com/d/com.teaxapp.hourcal) — 2,011,804 users, 3.91 / 5 - [GTCalc: Time Calculator](https://chrome-stats.com/d/vn.com.gatrong.timecalc) — 36 users - [Time Calculator: Hours & Math](https://chrome-stats.com/d/activ.calculadoradetiempos) — 140,128 users, 4.55 / 5 - [Timecalc](https://chrome-stats.com/d/com.timecalc.converter) — 38 users - [Time Calculator](https://chrome-stats.com/d/com.somdattpowerltd.timecalculator) — 11 users - [TimeCalcula: Time Calculator](https://chrome-stats.com/d/com.timecalcula.app) — 9 users - [Time and Date Calculator](https://chrome-stats.com/d/com.sanca.timeanddatecalculator) — 99 users - [Time Calculator](https://chrome-stats.com/d/com.rajspeedcalculators.speed) — 49 users - [Time Calculator for Pilots](https://chrome-stats.com/d/com.myflyingcareer.timecalculator) — 2 users - [TimeMate: Time Calculator](https://chrome-stats.com/d/com.timemate.calculator) — 104 users - [Time Calculator](https://chrome-stats.com/d/com.senecacreeksoftware.timecalculator) — 261,822 users, 4.45 / 5 - [Time Calculator :Convert Hours](https://chrome-stats.com/d/com.timecalculator.remok) — 1,021 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/it.tcalc.calculator)