If you're looking to Download Moon Calendar on your Chromebook laptop Then read the following guideline.

Moon Widget provides a quick and easy access to the Moon phase calendar from the menu bar. No app to launch nor no website to visit. Get sunrise, sunset, moon rise, moon set times along with the moon phase calendar from your menu bar. Features View lunar calendar for any month and any location. Find the moonrise, moonset, and moon phases for any day. Find the sunrise, the sunset for any day Altitude chart showing the current position of the moon on a chart. Widget for macOS Big Sur. View the exact date and time when the full moon and new moon occur Search for places by address, city or zip code Save multiple locations and easily switch from one location to another Note for users running on mac OS prior to Big Sur: The moon phase icon displayed on the menu bar will show up with inverted color (i.e the phase is drawn in black color instead of white. This applies only to the icon on the menu bar, the moon calendar will render correctly). This is a platform limitation with menu bar on older OS. On Big Sur and higher, the moon icon will appear correctly on both light mode and dark mode.