Sunrise/Sunset calculation for given latitude and longitude or for given city. Source: Almanac for Computers, 1990 published by Nautical Almanac Office United States Naval Observatory Washington, DC 20392
Calculates the time difference between the two cities based on the catalogue data.
The calculator shows the current time, universal time, and time for the selected city
This online calculator computes travel duration given departure time and city and arrival time and city using time zones information