Less time
doing time math.
Hours, dates, time zones and frames. Type time the way you think it, and get an answer that makes sense.
Every minute. Every frame. Taken into account.
Real time math. Go ahead, change the numbers.
Time maths in six trades
From your first coffee to the final cut. Find the setup that fits your day.
Everyday Life
When the film ends, how old you are in days, how long until a date. 20:15 + 2h18m.
HR & Payroll
Shifts across midnight, unpaid breaks, decimal hours for payroll. 22:00 to 06:30 - 30m.
Film & Video
SMPTE timecode as a real value, frames and all. 01:23:45:12f24 + 250f.
Developers
Epoch seconds, sprint dates, milliseconds. 1755000000 + 14d, out as ISO 8601.
Accounting
Billable time into man-days and FTE without a spreadsheet. 37h 15m / 8h.
Logistics
Driving blocks, mandatory breaks, what is left of the day. 9h - 4h30m - 45m.
Free tools:Decimal Hours CalculatorUnix Timestamp ConverterHours From NowMinutes to Decimal Hours Chart
What it does differently
Small details that make a big difference to your workflow.
It knows a date from a duration
A duration added to a clock time gives a time of day. Two dates subtracted give a span. Adding two dates is refused, because it means nothing.
One answer, 15 ways to read it
Compact time, decimal hours, work days, timecode, ISO 8601, epoch. Switch without retyping.
Buttons for what you type daily
Whatever you keep typing becomes one key. Set the label and the value.
A week is 40 hours, not 168
Working time does not run on calendar time. Define the steps once and every result respects them.
Keypads built for a trade
Profiles for HR, film, aviation, accounting, dev and logistics. Rearrange any of them, or start empty.
Same setup on every device
History, profiles and settings follow the account, not the browser.
Simple, Transparent Pricing
Free covers the maths. Pro is for people who reshape the keypad.
Free
The whole calculator. Every unit, every format, no account needed.
- All time units, dates, timecodes & timestamps
- All 15 output formats
- Ratio & step converters
- Classic profile with 3 quick buttons, first one customizable
- Calculation history (your last 20 calculations)
- Cloud sync across devices when signed in
- Keyboard shortcuts
Pro
One payment. Not a subscription.
Pay once. Every profile, unlimited custom buttons, yours for good.
- Everything in Free, plus:
- All 8 profiles (film, military, aviation, dev, HR, accounting, logistics)
- Unlimited custom profiles
- Unlimited custom buttons with custom colours
- Extended history (your last 200 calculations)
- One payment, no subscription
Sign in first, so your purchase follows you to your next device.
TCalc in Your Pocket
The Android app is on Google Play. iOS is still in the works.
