Convert a Julian Day to a Date
Need to convert Julian Day Numbers (JDN) into readable calendar dates? The Convert a Julian Day to a Date Tool lets you enter one or more Julian Day Numbers and…
Time Tools
Explore powerful time tools to convert units, find overlaps, generate dates, and tweak clock values. Everything you need to work with time, fast and easy.
GoConvert a Julian Day to a Date
Convert a Date to a Julian Day
Need to convert a calendar date to its Julian Day Number? The Convert a Date to a Julian Day Tool takes any standard YYYY-MM-DD formatted date and returns its Julian…
Convert Julian Calendar to Gregorian Calendar
Working with historical data or old calendar formats? The Convert Julian Calendar to Gregorian Calendar Tool helps you accurately convert dates from the Julian into their Gregorian equivalents. Whether you’re…
Convert Gregorian Calendar to Julian Calendar
Need to convert modern Gregorian dates into their historical Julian calendar equivalents? The Convert Gregorian Calendar to Julian Calendar Tool does exactly that. Whether you’re working with historical data, religious…
Convert Human’s Age to Dog Years
Wondering how old you’d be in dog years? The Convert Human’s Age to Dog Years Tool estimates the canine equivalent of a human’s age using a simplified formula. You can…
Convert Dog’s Age to Human Years
Want to know how old your dog is in human years? The Convert Dog’s Age to Human Years Tool helps you calculate the equivalent human age using a simple, commonly…
Convert Human’s Age to Cat Years
Want to estimate how your age would compare to a cat’s? The Convert Human’s Age to Cat Years Tool helps translate human ages into cat years using a commonly accepted…
Convert Cat’s Age to Human Years
Curious how old your cat would be in human years? The Convert Cat’s Age to Human Years Tool translates cat ages into their human-year equivalents using a widely accepted model.…
Check If a Year Is a Leap Year
Need to know if a year is not a leap year? The Check If a Year Is a Common Year Tool helps you identify whether each year you enter is…
Check If a Year Is a Leap Year
Need to quickly find out whether a year is a leap year or a common year? The Check If a Year Is a Leap Year Tool lets you paste or…