Calculate duration between two dates This service calculates the duration, counting the day count and the number of days, months and years between two dates.
Add to or subtract from a date This service enables you to add or subtract days, months and years to a date to calculate a past or future date.
List of Jewish Feast dates through 2017
Here
is a lunar
eclipse calculator that allows you to select a location and century from
0 AD to 3000 AD!! Much
more on lunar eclipses along with many links here.
Beast Calculator - type the name and get the number Option 1 Option 2