Calendar - free
Day view has a notes box for every day - what happened on site, who came, what was agreed. Notes save as you type. Pick any date range and Calendar turns the notes and events into a tidy site diary you can print or save as PDF. Free.

Click a date in the mini calendar and choose Day view (or press 1).
Type in Day notes at the bottom. They're saved for that day as you type.
Choose Site diary in the ··· menu (or ··· > Print & export > Site diary export). Choose the dates and whether to include notes, events or both.
Calendar makes a formatted diary file - open it, print it, or save it as a PDF.
Day notes and site diary help has every option in detail.
Free in Calendar. No time limit, no account and no ads - in the Windows app and in your browser, and your diary never leaves your PC. Calendar Pro is there when you want reminders, printable planners, Project Report, the AI assistant or more themes.
Yes. Day notes and the site diary export are free.
Calendar Pro's on-device AI assistant turns a day's notes and events into a short diary entry, and a week's into a draft update email - on your PC, nothing sent anywhere. You copy or append the result; it never writes anything on its own.
On your PC, with your events. Nothing is uploaded.

Day, Week, Timeline, Month and Agenda - drag to reschedule, week numbers and UK bank holidays.

Tag events by project, filter to one, and log actual hours against planned.

Windows notifications before your events, even when Calendar is closed.

Day, week, month and year wall planners in three styles - print or PDF.

Every event for a project, planned against logged hours, with CSV export.

Diary entries, weekly update emails and project summaries - private, on your PC.

Midnight, Graphite, Forest, Plum, Paper and Ocean.

All twelve months at once, with event dots - click a day to open it.

Bank holidays for Scotland, Northern Ireland and Ireland, and the clock changes.

Weekly and monthly timesheets from your hours, and an invoice from them.

Everything in one file - restore with a preview, merge or replace, and undo.
Calendar is free, in your browser and on Windows. Calendar Pro is a one-off £5.99 in the Windows app, with a free 7-day trial.