PrismKit計算機鬧鐘鬧鐘在瀏覽器中執行本機複製連結Markdown設定瀏覽器鬧鐘：指定日期時間、選定的星期幾或任意時區的 cron 排程，頁面開啟時會播放聲音並發送通知。曆法轉換器Convert a date between the Gregorian, Islamic, Hebrew, Persian, Chinese and other calendars, Julian Day, Unix time and Excel serial numbers.小費計算機Work out the tip and total on a bill, and split it evenly between any number of people.