年、月、日：大部份嘅曆法系統都屬於呢一種，包括公曆、儒略曆、伊斯蘭曆、農曆、同希伯來曆。年、週次同每個禮拜嘅第幾日：例如ISO week date。
Year, Month, Day: Most calendar systems fall into this category, including the Gregorian calendar, the Julian calendar, the Islamic calendar, the lunar calendar, and the Hebrew calendar. Year, week, and day of the week: e.g. ISO week date.