Freeform Time Calculator

Tired of calculating time manually from scattered inputs like 1h 30m + 45m – 15m? The Freeform Time Calculator Tool makes it easy to add or subtract hours and minutes using natural, flexible expressions. It’s perfect for quick calculations, messy logs, or cleaning up unstructured time entries.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .log
Total items: 0
Options
Pad HH:MM
Skip invalid lines

How to Use:

  1. Paste or type one freeform time expression per line into the Time Expressions box. You can use formats like 1h 45m + 30m, 2h - 15m, or 90m - 1h.
  2. You can also import a file using Choose File. Accepted types: .txt, .csv, or .log.
  3. In the Options box, pick your preferred output format:
    • HH:MM for hours and minutes
    • Decimal hours for total hours (e.g., 1.75)
    • Total minutes for a plain number
  4. Toggle Pad HH:MM to add leading zeroes to hours and minutes.
  5. Use Skip invalid lines to hide entries that can’t be parsed.
  6. The Calculated Output box updates instantly as you type.
  7. Click Copy Output or Export to File to save the results.
  8. Use Clear All to reset everything.

What Freeform Time Calculator Tool Can Do:

This tool parses and calculates total time from flexible input. You can mix formats like 1h, 2 hours, 30m, or 15 minutes, and it understands addition and subtraction. It outputs clean totals using the format you choose and gives you full control over how your results look. Padding and error-skipping toggles let you fine-tune your workflow.

Example:

Input:

1h 30m + 45m - 15m
2h + 3h
90m - 1h 15m

Output (format: HH:MM):

02:00
05:00
00:15

Common Use Cases:

Use this when tracking shift durations, reconciling logs, or converting loosely structured time notes into reliable totals. It’s especially helpful for contractors, event planners, and developers working with time-based records. Just drop in your data and let the tool handle the math for you.

Useful Tools & Suggestions:

If your time strings come from different sources, Normalize Unicode Text helps smooth out odd formatting. And when you need to dig into the actual values, Convert Unicode to Decimal gives a clear view of what you’re really working with.

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