Free tool

Project timeline planner

“Thirty working days” is not a date. Between you and the finish line sit weekends, Lunar New Year, Easter, a typhoon or two and your own team's days off. This planner turns working days into a calendar date, or works back from a deadline to the latest day work can start.

Private by design: what you enter stays in your browser. It is passed to our enquiry form only if you choose that option.

This tool needs JavaScript

Without it, count the working days on a calendar, leaving out weekends and the Hong Kong general holidays, and add a margin for delays. Or email us and we will help.

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What the planner assumes

Effort is in working days for the team as a whole. If three people each need ten days, that is thirty days of effort, but the calendar time depends on how much of it can run in parallel. Ask your supplier for the calendar estimate.
Hong Kong general holidays for 2026 and 2027 are built in. They come from published lists and should be confirmed on the Hong Kong Government's General Holidays page. For other years, add the dates under “Other days off”.
Sundays are never working days. Saturdays are skipped unless you choose a six-day week.
The buffer is your margin. A 20% buffer turns thirty days of effort into thirty-six working days on the calendar, which is a sensible allowance for feedback rounds, approvals and bad weather.

Typhoon and black-rainstorm days are not predicted, only absorbed by the buffer. See our guide to typhoon-proofing your systems for what to plan on the software side.

Frequently asked questions

Why work backwards from a deadline?

When a launch date is fixed, the real question is when work must begin. The backward mode counts working days back from your deadline and shows the latest start date that still fits, including the buffer.

Are the holidays official?

They are taken from published lists of the Hong Kong general holidays for 2026 and 2027, and should be confirmed against the official government page before you rely on a date. Statutory holidays for employment purposes differ slightly from general holidays.

Does it handle holidays in other places?

Add them as “Other days off”. This is useful when a client, supplier or team member is in another country or observes different days.

How long will my project take?

The planner converts effort into dates; it does not estimate the effort. For a rough idea of effort, try the project cost estimator or read how long a software project takes.

Is anything stored or sent?

No. The calculation runs in your browser. Nothing leaves the page unless you choose to add the summary to the enquiry form.

Working to a fixed date?

Tell us the deadline and what must be ready by then. We will say what is realistic.

Request a project quote