Boat Charter Booking Calendar with Deposits and Weather Postponements

Boat Charter Booking Calendar is an offline app (one HTML file in a zip) for a fishing or leisure charter with one boat or a small fleet. Each boat has a price for a half day, a full day and an extra hour. A booking takes a boat for a slot on a date, works out the price, and tracks the deposit and the balance. If a trip is cancelled, the app compares the notice given with your free cancellation days and tells you whether the deposit is to be refunded or kept. If the weather stops a trip, it goes on a list until you give it a new date.

The problem it removes: Trips and deposits are managed from chat. The same boat gets promised twice for the same morning, a confirmed trip turns out to have no deposit, and after a weather cancellation nobody remembers which customers still need a new date. At month end it is hard to say who paid, who owes a balance and whose deposit is to be returned.

What is inside:

• Boats with capacity, half day price, full day price and extra hour price
• A month calendar of trips by boat, colour coded by status from Enquiry to Completed
• A booking is refused if the boat is already taken in that slot, or if there are more passengers than the capacity you entered
• A confirmed trip needs the deposit: the percentage is a setting you enter
• Payments with deposit, balance and refund, and a balance owed per trip
• Cancellations: days of notice compared with your own free cancellation days, giving deposit to refund or deposit kept
• Today page: trips today with a WhatsApp reminder, enquiries waiting for a deposit, trips postponed for weather, balances to collect
• Printable trip confirmation and a printable day sheet
• Example data you can load in one click, a Start here guide and an Honest limits panel
• JSON backup and restore, CSV export, and CSV import with a check of every row before anything is added

Who it is for: owners of fishing charters, dhow cruises, speedboat and yacht hire and small marine tour operators who take bookings by phone and WhatsApp and want deposits and double bookings under control.

What it is NOT: It does not check weather, licences, crew rest or sea rules, and it does not decide how many people a boat may legally carry: the capacity is a number you enter from your own papers. It does not take online payments or send messages by itself, and the terms printed on the confirmation are sample wording that you replace with your own. It is not legal, tax or accounting advice, it is not connected to any government system, bank or messaging service, and it does not file or send anything by itself. UAE e-invoicing is not part of it.

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Verified by us: scripted tests in Chromium (138 checks through the real screens: adding, editing and deleting records in every table, required-field messages, backup then clear then restore, CSV export then import, keyboard order, print layouts rendered to PDF, no horizontal scrolling at 375 and 1280 pixels, no network requests) and an independent recalculation by a separately written Python evaluator of 1158 calculated values (25 randomised rows plus the example data) with 0 mismatches. Safari engine (WebKit): smoke test passed. Not tested: Firefox beyond what is stated here, and no real printer was used (print layouts were checked as PDF).