Does Daily Report Time Calculator upload my data?

Runs locally in your browser. No data is uploaded.

How do I use Daily Report Time Calculator?

1. Add tasks with labels and minutes. 2. Set transit minutes (optional). 3. Use Forward to compute an end time from a start time. 4. Use Backward to compute a required start time from an end time. 5. Copy the summary if you want to paste it into your report.

What are common mistakes with Daily Report Time Calculator?

Invalid times must be in HH:MM (e.g., 09:00). Times wrap around midnight (00:00 to 23:59).

Back

Forward Time Calculator

Calculate end time from start time plus task and transit minutes. Plan your daily report schedule forward with this free online tool.

What Is Forward Time Calculation?

Forward time calculation determines the end time given a known start time plus the total duration of all tasks and transit. It answers: "If I start at a certain time, when will I finish?"

Example

Start time: 09:00

Tasks: 90 min + 120 min

Transit: 30 min

Total duration: 240 min (4h 00m)

End time = 09:00 + 4h 00m = 13:00

When to Use It

Use forward calculation when you know your start time and want to estimate when tasks and transit will be completed. Ideal for daily reports, shift planning, and scheduling work blocks.

Try Backward (end → start) instead Open the Calculator →

Daily Report Time Calculator: Guide

Intent: Sum multiple tasks (in minutes) plus transit time, then calculate an end time (forward) or required start time (backward).
What it does: Adds task durations and transit minutes to produce a total time, then computes either end time from a start time, or required start time from an end time.
Key features: Forward (start -> end), Backward (end -> start), Multiple tasks list, Copy summary
Privacy: Runs locally in your browser. No data is uploaded.
Best for: Daily reports (日報) when you need total time and start/end times quickly
Planning when to start to finish by a fixed end time
Summing multiple work items without a spreadsheet
Why this tool: Fast dynamic task list with a clear total
Forward/backward time calculation in one place
Copyable summary for pasting into a report