はてなブックマーク

Fill in your birthdate below in the space indicated. (Note you must enter the year as a 4-digit number!)Click on the "Calculate" button.Notice that your age on other worlds will automatically fill in. Notice that Your age is different on the different worlds. Notice that your age in "days" varies wildly.Notice when your next birthday on each world will be. The date given is an "earth date".You can