I developed a web-based availability calendar for a guest house to help guests easily check available and unavailable dates in real time. The goal was to create a simple and user-friendly solution that synchronizes with Google Calendar, allowing the owner to manage bookings without modifying the website code. I integrated Google Calendar API with FullCalendar.js to automatically fetch and display events. All-day events are used to represent blocked dates, ensuring that availability updates dynamically as bookings are added or removed. This solution improved the booking process by making avai