{"query":"2025-01-31","date":"2025-01-31","year":2025,"month":1,"day":31,"weekday":"Friday","weekdayNumber":5,"isLeapYear":false,"dayOfYear":31,"daysInYear":365,"isoWeek":5,"isoWeekYear":2025,"doomsday":{"anchorDayNumber":2,"anchorDay":"Tuesday","div12":2,"mod12":1,"div4":0,"doomsdayNumber":5,"doomsdayName":"Friday","doomsdayInMonth":3,"doomsdayDate":"2025-01-03","distanceToDoomsday":28},"onThisDay":[{"date":"1958-01-31","title":"Explorer 1, the first US satellite, is launched"},{"date":"2020-01-31","title":"The United Kingdom formally leaves the European Union"}],"url":"https://whattheday.com/2025-01-31","api":"https://whattheday.com/api/weekday?date=2025-01-31"}