Get Time Calculator Cardamon on your phone
Time Calculator Cardamon is free on Google Play, with an iOS version on the way. It runs the same engine as the website, so a sum like "8h 15m × 3" gives the exact same answer on your phone. The Android app has no ads and no sign-up, and your work timesheets are one tap away on your home screen.
A look inside
A keypad made for time
Tap the keypad to build a sum like 5h - 10m and read the answer as you go. Tap the format chip to change how the result reads, from hours and minutes to a full breakdown.
Every unit on one screen
See the same total as years, days, hours, minutes, or milliseconds all at once, then tap one to set it as your result. No converting in your head.
Turn time into a rate
Enter an amount and read it per hour, minute, day, or week against your duration. Built for billing, pay, and quick what-if estimates.
Saved, with your own notes
Keep a result, label it like "Project A payroll", and tap any entry to reopen it in the exact format you saved it with. Copy or edit in a tap.
A keypad you shape
One-tap presets like Stopwatch or Media, or pick the exact unit keys you want. Fewer keys means a cleaner, faster pad with a live preview as you choose.
Light, dark, your call
Light, dark, and system themes, with the same quick keypad. Drag the divider to resize the display to fit your hand.
Customisable keypad, saved history, and quick result actions.
What people use it for
Work timesheets
Add up clock-in and clock-out blocks across a week and read the total in hours and minutes.
Drivers logging hours
Truck and transport drivers track on-duty, drive, and break time without converting everything to minutes first.
Audio and video editing
Work down to the millisecond, add clip lengths, and split a runtime into even segments.
Billing and splitting time
Multiply a rate block by a number or divide a task evenly, like "1 day ÷ 4" for four people.
Developers and converting
Convert a duration between days, hours, minutes, and seconds, then switch the result format to match your code.
Everyday math
Cooking timers, workout sets, and fasting windows add up fast when you can type "16h - 90m" and just read the answer.
What it does
- A fast keypad of number keys and time-unit keys, with the answer updating as you tap
- Add, subtract, multiply by a number, and divide durations
- Works in years, months, weeks, days, hours, minutes, seconds, and milliseconds
- Pick how the result reads: Hour Minute, Day Hour Minute, Minute Second, and more
- Customise the keypad: presets like Stopwatch or Media, or your own choice of unit keys
- Same engine as the website, so answers match down to the millisecond
- Light, dark, and system themes; resize the display with a draggable divider
- Android is free with no ads and no account required
Why the app
- One tap from your home screen, no browser or URL to find
- Works offline, so it keeps calculating with no signal on the job site
- Your calculation history stays saved on your device
- No ads and nothing tracking your sums; the math stays on your phone
- Faster keypad built for thumbs, with a layout you can resize to fit your hand
Prefer the browser? Use the web calculator — same engine, nothing to install.