Date Calculator
The Date Calculator is a tool to help you work with the dates which you will encounter when researching your family history. Often dates in historical records are not completely accurate, or you may find records of people with the same name but different ages, and you want to see which record is most likely to be the one you are looking for.
Add or subtract
This tool can help make it easier to work out the exact date of an event if you know and age in days, months, and years.
Duration
You can use this to calculate a person's age in days, months, and years.
For example, you know a person in your family was born on 21 Sep 1969, and you believe that they died on 14 Nov 2010. The result would give the exact age in years, months, and days.
Day of week
If you have ever wondered what day of the week a certain event occurred, enter the date and click calculate to find out.
Convert
Convert a date in one calendar format to the equivalent date in another calendar.
Fig 1. The Date Calculator tool.